Vac-U-Lock Dual Density Ultraskyn Set blends multiple position compatibility with reinforced harness engineering, featuring three interchangeable attachments that adapt to diverse scenarios. The commercial-grade components resist frequent use while maintaining secure connections for extended intimate exploration sessions.
Key Features:
Complete strap on set includes adjustable unisex harness fitting up to 69 inches and three dual density ULTRASKYN dildos for realistic penetration and stimulation during intimate encounters.
Three different dildo sizes provide versatile options including 8 inch pink realistic dong 7 inch blue cock and 7 inch purple slim cock for customized sexual experiences.
Dual density ULTRASKYN material warms to body temperature creating lifelike skin sensation while remaining phthalate free and body safe for comfortable vaginal and anal penetration.
Vac U Lock compatibility system allows secure attachment switching between dildos and includes removable suction cup for hands free masturbation and penetration against surfaces.
O ring harness design accommodates three ring sizes enabling compatibility with additional sex toys while providing stable positioning for thrusting and penetrative sexual activities.
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Three interchangeable dildos with a universal harness give couples and solo users choice over size, texture, and intensity in one kit. Doc Johnson's dual-density construction stays firm through years of regular use, while the Vac-U-Lock system keeps attachments locked tight during play.
Why choose the Vac-U-Lock Dual Density Dildo Set by Doc Johnson
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📦 Discreet plain-wrapped delivery • 💳 Private billing • ↩️ Easy size-swap returns |
Three distinct attachment sizes let you choose your experience based on mood and energy level. Pick the 8-inch realistic option for deeper penetration, the 7-inch standard for balanced sensation, or the slimmer profile for gentler, gradual exploration. Swap between them in seconds using the Vac-U-Lock mechanism—a simple push-and-twist motion that creates a secure seal without loosening during intense movement or position changes.
Dual-density ULTRASKYN construction feels realistic but stays firm, so the attachment won't collapse under vigorous activity or repeated thrusting. Extender Kits For Penis Growth work differently, adding length rather than offering interchangeable intensity. Here, you're switching textures and depths within a single session. A universal harness adjusts up to 69 inches, fitting hips and thighs securely across different body shapes and angles. You can also use the suction cup base against any smooth surface for hands-free positioning and new position options beyond traditional harness wear.
Start by measuring your hip and thigh circumference to find your baseline harness fit. At 69 inches maximum adjustment, this kit suits most body types, if you're slighter or larger-framed. If you're buying for role-switching with a partner, remember that comfort during extended wear beats ego—a snug but not tight fit lets you move freely and focus on sensation rather than pinching. Cockringshop specialises in products for men and couples, so if you're unsure about your measurements, our team can guide you toward the right fit before you buy.
Adjust the harness first, securing it around your hips and thighs so it sits snug but comfortable. Choose your attachment based on what you want—realistic depth, balanced feel, or a slimmer approach. Always use lubricant; friction builds quickly during longer sessions, and skipping this step will leave you sore. Attach your chosen dildo by pushing it firmly into the Vac-U-Lock base and twisting until you feel it lock. Test the connection before starting play to make sure it's seated properly and won't slip.
If you're using the suction cup base instead of the harness, press it firmly against any smooth, clean surface and let it hold the attachment hands-free. After play, clean with the included toy cleaner and refresh powder to maintain the material's feel and durability. Store in a cool, dry place away from direct sunlight and heat.
| Feature | Specification | Benefit | Experience |
|---|---|---|---|
| Interchangeable Attachments | Three sizes included | Customise stimulation intensity without extra purchases | Switch between options based on mood and energy |
| Dual-Density Construction | ULTRASKYN material | Realistic feel combined with long-lasting durability | Consistent performance over months of regular use |
| Adjustable Harness | Up to 69-inch fit | Secure positioning for multiple body types | Comfortable extended wear without slipping |
| Vac-U-Lock System | Secure twist connection | Attachments stay locked during intense movement | No loosening or popping off during play |
Couples who want position variety without buying multiple separate kits benefit most from this set. If you and a partner take turns topping, or if you want to switch intensity mid-session without stopping, the three-in-one design cuts down cost and storage clutter. Solo users who like to progress from gentler to deeper play will appreciate having all three sizes on hand. The durable build also suits anyone who plays regularly and wants a kit that lasts months or years without degradation.
Skip this kit if you prefer a single, fixed attachment or if you dislike the harness-based approach. If you're sensitive to ULTRASKYN or prefer a softer, more flexible material, a different product type might suit you better. Likewise, if you find the Vac-U-Lock mechanism fiddly or you want hands-free vibration, you'll want to explore other options.
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Tested and quality-checked Every new line we stock is inspected by hand before it goes live — we check the build, the finish, and the materials, and we confirm it is safe and fit for how it will be used. Nothing is used for its intended purpose; it is examined, checked, and re-boxed. What that means for you is simple: you receive a piece we have already vetted, not a guess off a supplier's pallet. See how we test every product → |
This set offers three fixed, non-vibrating attachments with interchangeable options and harness versatility. If you want vibration and pulsing sensations, E Stim Kits add electric stimulation for deeper intensity. Standard dildos are static; vibration adds motion and sensation without changing size or texture. Choose this kit for customisable size and depth without motors; choose vibration if you want consistent buzzing or pulse patterns alongside penetration.
| 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. 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. |
Pair this harness set with Couples Penis Sleeves to add extra girth or sensation for the receiving partner. Sleeves slide onto the penis and intensify contact inside the dildo, deepening pleasure for both partners during penetrative play. Together, they create layered sensation—the sleeve's texture against the dildo's firmness—without needing separate harnesses or complex setup.
Doc Johnson builds modular systems designed for durability and versatility. Doc Johnson offers a wider range of interchangeable attachments, harnesses, and combinations suited to different play styles and body types. Explore the full brand range to find other configurations and sizes.
Sex toy care, harness fitting, and technique guides are all covered in depth elsewhere. Sex Toy And Product Guides has detailed articles on getting the most from your kit and keeping it in top condition.
Want firmer, longer-lasting results without the guesswork? Order the Vac-U-Lock Dual Density Dildo Set by Doc Johnson from The Cock Ring Store and get a genuine, function-tested and quality-checked product backed by discreet packaging and shipping. Cockringshop ensures every item is inspected before it reaches you, so you can buy with confidence knowing you're getting a product that performs. Australia's cock ring specialists, helping you buy with confidence. The Cock Ring Store ships discreetly Australia-wide.
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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.
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International Shipping
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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.
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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.
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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
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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
We ship same day on all in-stock orders placed before 12pm! Free shipping on all orders above $200.
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We ship our full range of products worldwide with fast dispatch for orders before 12pm Sydney EST!
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