Vac-U-Lock Dildos – A Secure, Interchangeable Fit
Vac-U-Lock dildos have a hollow socket in the base that pushes onto a matching plug, so the dildo can be used on its own or fixed to compatible harnesses, handles, mounts and other accessories. This collection is currently small: it features the Kiiroo Keon Vac-U-Lock realistic silicone dildo, a lifelike 19 cm toy that fits the Kiiroo Keon adapter as well as other Vac-U-Lock accessories. It suits people who like the idea of one dildo working across several set-ups. For a wider choice of shapes and attachment styles, browse our full dildos range as well.
How the Vac-U-Lock System Works
Vac-U-Lock is a connection system rather than a single type of dildo. Understanding how it works helps you check that the toy and the accessories you plan to use will fit together.
The Socket and Plug
The base of a Vac-U-Lock dildo has a recessed opening. Compatible accessories have a matching plug that slides into this opening, and the snug fit holds the dildo in place. Because the connection is standard across compatible products, you can move the same dildo from one accessory to another.
Using the Dildo on Its Own
You do not need any accessory to enjoy a Vac-U-Lock dildo. Without a plug fitted, it works like any other dildo, held by hand during solo or partner play. The socket simply gives you extra options later.
Checking Compatibility
Not every harness, mount or machine uses the Vac-U-Lock connection. Before you buy an accessory, check that its listing names Vac-U-Lock compatibility or a matching plug, and follow the manufacturer's instructions for attaching and removing the dildo.
Who Vac-U-Lock Dildos Suit
An interchangeable dildo appeals to people who like to build up a collection of accessories over time. If you already own a Vac-U-Lock harness or handle, a new dildo can slot straight into your existing kit. Couples exploring strap-on play may like being able to use the same dildo by hand first and then in a harness once they feel confident. Anyone who owns compatible equipment from Kiiroo may also want a dildo that connects through the Keon adapter. If you are not sure you will ever use accessories, a standard dildo with a flat or suction base may be the simpler choice.
Benefits of an Interchangeable Base
A shared connection means fewer duplicate toys, because one dildo can serve several purposes. It also lets you change the angle or set-up without buying a complete new kit. The trade-off is that the socket needs a little extra attention when cleaning, as described below.
Vac-U-Lock Dildos in Our Range
Kiiroo Keon Vac-U-Lock Realistic Silicone Dildo
This realistic dildo measures 19 cm, with a stated diameter of about 4.7 cm, so it gives a noticeable sense of fullness. It is made from silicone with a lifelike shape, and the listing describes it as compatible with the Kiiroo Keon adapter and other Vac-U-Lock accessories. Check the listing for the full dimensions and what is included in the box.
Similar Styles to Explore
If you mainly want a dildo that works hands-free or in a harness, other attachment styles may suit you. Our suction cup dildos grip smooth, flat surfaces, many realistic dildos have a flat base that fits an O-ring harness, and our strap-ons and harnesses collection includes complete sets with the dildo already matched to the harness.
How to Choose a Vac-U-Lock Dildo
- Size: Compare the length and diameter on the listing with toys you already enjoy, and size down if you are unsure.
- Material: Check the material named by the manufacturer. Silicone is non-porous and easy to clean when cared for properly.
- Accessories you own: Confirm that any harness, handle or mount you plan to use has a Vac-U-Lock plug.
- Intended use: Decide whether you will mostly use the dildo by hand, in a harness or on a mount, and choose a size that suits that use.
- Realism: Look at the shape, texture and colour described on the listing if a lifelike look and feel matters to you.
Safe and Comfortable Use
Fitting and Attaching
- Check the connection: Push the dildo fully onto the plug and check it feels secure before use. Stop and refit it if it starts to loosen.
- Use the right accessory: Only attach the dildo to accessories designed for the Vac-U-Lock system, and follow each manufacturer's instructions.
- Harness comfort: If you use a harness, adjust the straps so they feel firm but not tight, and check comfort regularly.
Comfort and Lubricant
- Go slowly: Warm up first, start gently and stop if anything feels painful.
- Use lubricant: If you are unsure, a water-based lubricant is usually the safest choice. Avoid silicone-based lubricant with silicone toys unless the manufacturer says it is fine.
- Anal use: Only use a toy anally if it has a flared base or is fixed to a handle or harness that stops it slipping inside.
Hygiene and Sharing
The NHS advises keeping sex toys clean and, if you share them, washing them between each use and covering them with a new condom each time. Read more in the NHS guidance on sex activities and risk.
Cleaning and Storage
- Remove from accessories: Take the dildo off the plug before cleaning so you can reach the socket.
- Wash after every use: Clean the dildo and the inside of the socket with warm water and mild, unscented soap or a toy cleaner, then rinse well.
- Dry fully: Let the socket air-dry completely, as water can collect inside the base.
- Clean accessories too: Wipe plugs, handles and mounts, and follow the care label for any harness straps.
- Store carefully: Keep silicone toys in a clean pouch or box, away from heat and direct sunlight, and apart from other materials.
Why Buy Vac-U-Lock Dildos from DelighToys
- A trusted brand: Our current Vac-U-Lock dildo comes from Kiiroo, a well-known name in interactive toys.
- Clear product information: Each listing shows the size, material and compatibility stated by the manufacturer.
- Discreet packaging: We pack orders in unbranded, plain packaging so the contents stay private.
- UK, Ireland and EU delivery: We ship to customers in the UK, Ireland and across the EU, with a secure online checkout.
Vac-U-Lock Dildos – Frequently Asked Questions
What does Vac-U-Lock mean?
Vac-U-Lock is a connection system. The dildo has a hollow socket in its base that pushes onto a matching plug on compatible accessories, holding it securely in place. The same dildo can then be moved between accessories that use the system.
Can I use a Vac-U-Lock dildo without accessories?
Yes. Without a plug fitted, it works like a standard dildo held by hand. The socket simply gives you the option of attaching it to a harness, handle or mount later.
Will it fit my harness?
It will fit harnesses and accessories that have a Vac-U-Lock plug. Many harnesses use an O-ring instead, so check the accessory listing for Vac-U-Lock compatibility before you buy.
How big is the Kiiroo Keon Vac-U-Lock dildo?
The listing gives a length of 19 cm and a diameter of about 4.7 cm. Compare these measurements with toys you already own to make sure the size suits you.
Which lubricant should I use?
If you are unsure, a water-based lubricant is usually the safest choice. Avoid silicone-based lubricant with silicone toys unless the manufacturer says it is suitable.
How do I clean the socket in the base?
Remove the dildo from any accessory, wash the socket with warm water and mild soap or a toy cleaner, rinse well and let it air-dry fully before storing or reattaching it.
How is my order packaged?
Parcels are sent in discreet, unmarked packaging with no product names visible. We ship across the UK, to Ireland and throughout the EU.
Shop Vac-U-Lock Dildos with Confidence
Ready for a dildo that adapts to your set-up? Browse our Vac-U-Lock dildos above, check the size and compatibility on the listing, and order with discreet delivery to the UK, Ireland and the EU.