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Vac-U-Lock Dual Density Dildo Set by Doc Johnson - Sex Kits
Vac-U-Lock Dual Density Dildo Set by Doc Johnson - Sex Kits
Vac-U-Lock Dual Density Dildo Set by Doc Johnson - Sex Kits

Vac-U-Lock Dual Density Dildo Set by Doc Johnson

$349.99
$349.99

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.

Vendor: Doc Johnson
SKU: KT-143-NOATTRIBUTES-SHOP-NONE-48600
Availability: Out Of Stock
Product type: Sex Kits
Please hurry! Only 0 left in stock

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
  • Three sizes in one: 8-inch, 7-inch standard, and slim profile
  • Durable construction: ULTRASKYN holds shape through extended use
  • Secure connection: Vac-U-Lock twist mechanism won't loosen mid-session
  • Adjustable harness: Fits up to 69 inches for different body types
  • Role switching: Partners can swap without buying separate kits
  • Hands-free options: Suction cup base works on smooth surfaces
  • Long-term value: Resists wear from frequent attachment changes
📦 Discreet plain-wrapped delivery  •  💳 Private billing  •  ↩️ Easy size-swap returns

What it does

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.

Specifications

  • Interchangeable attachments: Three options—8-inch, 7-inch standard, 7-inch slim
  • Material: Commercial-grade dual-density ULTRASKYN
  • Harness adjustment: Up to 69 inches
  • Connection system: Vac-U-Lock secure twist mechanism
  • Included: Toy cleaner and refresh powder

Fit and sizing

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.

How to use it

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 breakdown

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

Who it suits

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.

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 →

How it compares

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.

What you can use it with

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.

More from Doc Johnson

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.

Read more before you buy

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.

Why buy the Vac-U-Lock Dual Density Dildo Set by Doc Johnson

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.

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

How does the Vac U Lock Dual Density Ultraskyn Set enhance penetration during strap on play?
The dual density construction provides a firm inner core with soft outer layer that warms to body temperature creating realistic skin sensation during vaginal and anal penetration for enhanced arousal.
What makes the Vac U Lock Dual Density Ultraskyn Set effective for different body sizes?
Adjustable harness straps accommodate waist sizes up to 69 inches while three interchangeable ring sizes ensure secure dildo positioning and comfortable fit across diverse body types during sexual activity.
Which attachment options does the Vac U Lock Dual Density Ultraskyn Set offer for varied stimulation?
Three distinct dildos include an 8 inch realistic dong with pronounced head and veined shaft plus 7 inch blue and purple options providing different girths for customized penetration experiences.
Why is the Vac U Lock Dual Density Ultraskyn Set better for hands free masturbation?
Removable suction cup base allows secure mounting on smooth surfaces enabling solo penetration and thrusting motions without manual holding while maintaining realistic skin like texture and warmth.
Does the Vac U Lock Dual Density Ultraskyn Set work for both vaginal and anal penetration?
Body safe ULTRASKYN material and multiple size options accommodate both vaginal and anal stimulation safely with included water based lubricant ensuring smooth insertion and comfortable thrusting during intimate play.

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