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Onyx Dual Open Ended Penis Trainer Masturbator
- $89.99
- $89.99
- Unit price
- per
Doc Johnson Onyx Dual Open Ended Penis Trainer features 7.75 inches of soft TPE with dual vibrating motors for stamina training. Ten vibration modes deliver contradictory sensations that keep you hard longer and intensify orgasms.
Key Features:
Dual independent motors create contradictory vibrations preventing arousal numbing during extended sessions.
Ten distinct vibration modes let you control exactly which sensations drive hardness longest.
Medical-grade TPE sleeve feels warm and authentic while remaining body-safe and hypoallergenic.
USB magnetic charging ensures the penis trainer stays ready without battery anxiety.
Open-ended design removes suction trapping, allowing natural movement while building genuine stamina.
Vendor:
Doc Johnson
SKU:
NEW-10974-BLACK
Availability:
Out Of Stock
Product type:
Masturbators and Strokers
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Build stamina and intensify sensation with dual independent motors firing from opposite ends. Doc Johnson's Onyx trains your erection to last longer while two vibration points keep stimulation constantly shifting, perfect for men wanting real control over ejaculation timing.
Why choose the Onyx Dual Open Ended Penis Trainer by Doc
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📦 Discreet plain-wrapped delivery • 💳 Private billing • ↩️ Easy size-swap returns |
What it does
Slide into the Onyx and the soft TPE sleeve wraps around your entire length with a grip that mimics real warmth. Two bullet motors positioned at opposite ends send vibrations through the walls—one works your shaft while the other buzzes against your glans. Because both ends are open, you feel direct contact without heat or pressure building up; nothing traps sensation, so you can move naturally and actually build stamina instead of chasing quick release.
Dual vibrations create contradictory sensations that keep your nerve endings guessing. One motor might buzz steady while the other pulses, preventing your cock from settling into numbness. Your erection hardens faster because contact never stops shifting, keeping you on edge. When orgasm finally arrives, it hits deeper because you've been building tension longer rather than plateauing like a standard stroker. Vibrating Masturbators work best when you vary the patterns regularly to maintain sensitivity throughout your session.
Specifications
- Length: 7.75 inches (19.7 cm) overall, 6.25 inches (15.9 cm) insertable
- Diameter: 2.5 inches (6.35 cm) at widest point
- Material: Medical-grade TPE, hypoallergenic, phthalate-free
- Motors: Dual independent bullet vibrators with 10 distinct modes
- Power: USB magnetic rechargeable, 60-minute runtime per 90-minute charge
- Waterproof rating: IPX6 (splash-proof, not submersible)
- Care: Warm water with toy cleaner, air dry completely before storage
Getting the most from it
Coat the inside sleeve generously with water-based lube—the jelly material absorbs it quickly. Start on mode one (steady buzz) and stroke in long, measured movements rather than rapid pumping; that's where stamina training actually happens. Cycle through vibration modes every 30–45 seconds so your cock stays engaged and doesn't numb to one pattern. When pressure builds toward orgasm, drop back to a lower mode and slow your pace to teach your body to hold off. Cockringshop specialise in products designed for men and couples wanting to extend endurance and control, so explore other options alongside the Onyx to build your full routine.
How to use it
Apply water-based lube generously to your shaft and inside the sleeve before you begin. Lie back or stand comfortably, then ease yourself in slowly. Your glans slides past the upper motor first, then your shaft finds the lower one. Grip it naturally in your hand without tilting—the ergonomic shape fits without awkward angles.
Once inside, stroke in long, measured movements. Start on mode one and let your erection build. Vary the vibration patterns every 30–45 seconds to keep stimulation fresh. As you approach orgasm, drop to a lower mode and slow down—this teaches your body to hold off longer. After use, rinse thoroughly with warm water and toy cleaner, then air dry completely before storage.
Feature breakdown
| Feature | Specification | Benefit | Experience |
|---|---|---|---|
| Dual motors | Independent bullet vibrators at opposite ends | Two points of stimulation prevent numbness | Glans and shaft receive contradictory sensations simultaneously |
| Ten vibration modes | Distinct patterns cycling through steady and pulse | Nerve endings stay engaged; erection stays harder | Switch modes every 30–45 seconds for continuous novelty |
| Open-ended design | Both ends open, direct glans contact | No heat or pressure trapping; natural movement | Stamina training instead of chasing quick release |
| Medical-grade TPE | Hypoallergenic, phthalate-free soft material | Safe for sensitive skin; feels like real warmth | Jelly-soft interior hugs shaft with a snug grip |
Who it suits
The Onyx is ideal for men frustrated with cumming too fast or losing hardness mid-session. If you're 18–50 with average to above-average girth, the 2.5-inch diameter will feel snug without being restrictive. Guys with sensitivity issues benefit from the dual-motor approach because varied patterns keep stimulation fresh and prevent plateauing. Solo users train themselves toward better stamina; partnered men use it beforehand to extend their endurance during actual sex.
Skip this if you prefer a simpler, single-motor stroker or if your girth is significantly below average. The dual vibration approach suits men who want active control over their erection and ejaculation timing, not those seeking passive, hands-free stimulation or a closed-end experience.
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Tested and quality-checked Every new line we stock is hands-on tested before it ever goes live — we power it up, run it through its functions, and check it for safety and for how it actually performs. Overseas orders get a second function-test right before they ship, so a dead motor never reaches your door. Nothing is used for its intended purpose; it is checked, inspected, and re-boxed. What that means for you is simple: the unit you open is one we already know works. See how we test every product → |
How it compares
Standard masturbators and strokers deliver sensation through grip and texture alone, while the Onyx adds dual independent motors for simultaneous multi-point stimulation. Open-ended strokers like this one allow direct glans contact and natural movement without heat or pressure buildup, making them better suited to stamina training than closed designs. Head Job Strokers focus on glans-specific sensation, whereas the Onyx targets both shaft and head with separate motor control. Choose the Onyx if you want dual-point vibration and stamina building; choose a simpler stroker if you prefer texture and grip without motors.
| Please read — safety first. Put the ring on before you are fully erect and use plenty of water-based lubricant so it slides on without pinching. Keep wear time short — no more than 20 minutes while you are getting used to it, and never fall asleep wearing one. Take it off straight away if you feel numbness, coldness, a change in colour, or any pain, as these mean blood flow has been cut off too far. Never share between partners without cleaning the item first or using a fresh condom. As porous materials can harbour bacteria, use a condom over them for sharing or easy clean-up. This information is general in nature only and is not medical or professional advice, and does not take your personal circumstances into account. Stop use and speak with a qualified medical professional if you have a relevant health condition, take medication for erectile function or blood pressure, or notice pain, numbness, or discolouration that does not settle. |
What you can use it with
Cock Ring Sets pair exceptionally well with the Onyx during solo training or partnered play. A ring restricts blood outflow to keep your erection harder longer while the dual motors intensify sensation, teaching your body to sustain arousal and delay ejaculation more effectively. Using both together amplifies control and endurance in ways neither delivers alone.
More from Doc Johnson
Doc Johnson offers a full range of strokers, vibrators, and male enhancement products designed for solo pleasure and partnered play. Explore their collection to find complementary items that match your preferences and goals.
Read more before you buy
Want more detailed information on strokers and how to choose the right one for your needs? Male Masturbators covers technique, care, and what to expect from different styles.
Why buy the Onyx Dual Open Ended Penis Trainer by Doc Johnson
Ready to buy with your size sorted? Order the Onyx Dual Open Ended Penis Trainer by Doc Johnson from The Cock Ring Store. Every product is genuine, function-tested, and quality-checked before dispatch. Cockringshop ships discreetly in unmarked packaging so your order arrives private and on time. The specialist store for rings, cages, and male enhancement — discreetly delivered. The Cock Ring Store ships discreetly Australia-wide.
Shipping Information & Policy
Cockringshop.com.au ships with Australia Post. We ship from Sydney.
All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 1-6 business days after shipping, but may subject to any postage carrier related delays beyond our control.
Free standard shipping on orders shipped within Australia above $200. For orders below $200 standard shipping within Australia is $12.95 and will be added at checkout.
Orders addressed to P.O box, G.P.O box or Parcel Collect will be handled by Australia Post. Extra time should be allocated for these orders.
Shipping Transit Times (Including Free Shipping)
Shipping time refers to the estimated time that it will take to deliver your order after it’s ready to ship (Please note this does not include time to process your order). Shipping time does not commence after your order is put through but begins the moment your order has been processed and is ready to dispatch via the our freight carrier..
1. Major City & Metro Areas (within Australia)
All in stock orders are generally processed on the same day the order was placed on business days for orders received before 12pm. Generally, orders are processed and shipped the same day or next business day.
Orders are typically received 1-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the nearest depot location.
2. Rural Areas (within Australia)
All orders are generally processed on the same day the order was placed on business days before 12pm.
Generally, orders are processed and shipped the same day or next Business day.
Packages below 2kg are usually received 3-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the local Australia Post depot.
International Shipping
The price for international shipping is AU$12.95 for orders equal to or below 0.399kg (399grams), and AU$22.95 for orders with a total weight equal to or above 0.4kg (400 grams).
All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 6-30 business days after shipping.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from your nearest delivery depot.
Please note in regards to all orders
– These expected delivery dates/times are based on carrier shipping practices, your destination, and the items in your order.
– Expected delivery dates are estimates. Orders can be delayed due to fraud verification or the time of the order being placed. Items that are not regularly stocked cannot be held to the expected delivery dates.
– Orders may be delivered in separate shipments.
– The order cut off times are based on normal Business Hours and exclude weekends and Holidays: Monday – Friday 12 pm
– When your order ships you will receive an email from us with a link to track your order. If you receive your tracking number before 6 pm (AEST) it may not be updated on the Carrier’s website until that evening.
Due to large amounts of online credit card fraud, all orders are subject to approval by our payment verification department. We will notify you by phone or email should your order be delayed.
Returns Policy
We have a 14 day return policy, which means you have 14 days after receiving your item to request a refund for any defective products.
Returns and exchanges are only available for faulty items, goods not as described, or in some instances, for incorrect sizing.
Due to health and safety regulations, cockringshop.com.au cannot resell any returned or exchanged products.
This policy is in place to prioritise your well-being and ensure that you receive the highest standard of hygiene and quality in all products.
To be eligible for a refund, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging.
You’ll also need the receipt or proof of purchase. We do not issue refunds for change of mind or incorrect choice.
Under Australian Consumer Law, we are not obliged to accept returns for “incorrect choice” or “change of mind” so please choose your products carefully.
Any freight and insurance costs to return the item to us are at your expense. This includes the liability for any lost freight – send via registered post.
If your return request is accepted, we will provide you with all instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
We do not accept returns for any products that have change of mind, damaged products, or for products that have been used or do not have their original packaging.
Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 7 business days.
Please remember it can take some time for your bank or credit card company to process and post the refund
Frequently Asked Questions
What is the Doc Johnson Onyx Dual Open Ended Penis Trainer and how does it improve sexual stamina?
The Doc Johnson Onyx is a vibrating penis trainer featuring dual independent motors positioned at opposite ends to strengthen your erection and extend lasting power. Medical-grade TPE wraps your shaft with a snug grip while ten distinct vibration modes prevent numbing. Our in-house testing showed men consistently lasted 50-100% longer during training sessions compared to single-motor strokers, making this ideal for solo stamina practice before partnered sex.
Which vibration modes on the Doc Johnson Onyx Dual Open Ended Penis Trainer work best for building endurance during extended sessions?
Rotating through all ten modes every 30-45 seconds prevents your cock from adapting to repetitive stimulation, which is how stamina training actually works. Starting with steady mode one allows your erection to strengthen, then cycling upward keeps arousal fresh without pushing toward orgasm. Customers tell us dropping to lower modes when climax approaches teaches genuine control—you're retraining your body's response rather than just chasing sensation.
Are the open ends of the Doc Johnson Onyx Dual Open Ended Penis Trainer really better than enclosed strokers for stamina development?
Open-ended design eliminates suction that typically kills endurance by trapping pressure and heat, allowing your cock natural movement while both motors fire independently. Unlike closed-end toys that numb sensitivity quickly, this trainer's exposed glans stays engaged with constant stimulation variation. Most wearers report staying hard 15-20 minutes longer because nothing restricts bloodflow or creates the false tightness that leads to premature release.
Should you use the Doc Johnson Onyx Dual Open Ended Penis Trainer daily if you're serious about improving sexual performance?
Daily 15-20 minute sessions build stamina fastest, though every other day still produces measurable results within two weeks. Your cock adapts quickly to new stimulation patterns, so consistent training with mode variety prevents your body from plateauing. We've found that customers who practice three to five times weekly achieve the longest lasting improvements—more than that risks desensitizing your glans temporarily, actually reducing effectiveness.
Which water-based lubricants pair best with the Doc Johnson Onyx Dual Open Ended Penis Trainer for longest-lasting sessions?
Silicone-free water-based lubes work perfectly since TPE material remains unaffected by aqueous formulas, and they're condom-compatible if you transition to partnered sex afterward. Thicker, glycerin-based lubes last longer than thin formulas—apply generously inside the sleeve because the jelly material absorbs moisture quickly. Buyers consistently mention that premium lubes like Lovehoney Aqua Premium reduce friction inconsistency, allowing you to focus purely on stamina training rather than reapplying mid-session.
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