What does dual density mean in a dildo? A dual-density dildo is made in two layers. The inner core is firm, which keeps the shaft straight enough to insert and control. The outer layer is soft and moves a little over the core, much as skin moves over an erection. The result feels more natural than a dildo that is one hardness all the way through. This Thin Dong uses that construction in ULTRASKYN, with a soft exterior over a firm center.
Vac-U-Lock 7 Inch Thin Dong in ULTRASKYN
The Vac-U-Lock 7 Inch Thin Dong from Doc Johnson is a slim, realistic dildo attachment. It is handcrafted in ULTRASKYN with a dual-density build: a soft outer layer over a firm core. The head is defined, the tip is tapered for easier entry, and textured veins run along the shaft. The insertable length is 6.5 inches. It is made in the USA and is phthalate-free.
The base fits all Vac-U-Lock harnesses and accessories, and it also works in O-ring harnesses. The slim shaft is the main point of this model.
Best for: For strap-on users who want realistic length without much girth. The slim shaft and tapered tip make it a sensible choice for pegging, for first-time strap-on play and for anyone who finds standard dildos too thick.
At a glance: 7 in attachment · 6.5 in insertable · Dual-density ULTRASKYN · Vac-U-Lock and O-ring · Made in the USA
Key features
| Slim shaft |
A thinner profile that is easier to take than a standard dong. |
| Tapered tip |
The narrowed head helps with a slow, comfortable entry. |
| Dual-density ULTRASKYN |
Soft outside and firm inside for a lifelike feel. |
| Textured veins |
Raised veins give the shaft realistic texture. |
| Vac-U-Lock base |
Locks onto any Vac-U-Lock compatible harness or accessory. |
| O-ring compatible |
Also fits standard ring-style harnesses. |
Specifications
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Length: 7 in
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Insertable length: 6.5 in
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Material: ULTRASKYN, dual density (phthalate-free)
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Fitting: Vac-U-Lock socket; O-ring harness compatible
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Color: White
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Made in: USA
How to use
Attach the dong to your harness first. On a Vac-U-Lock harness, press the socket in the base down over the plug until it sits flush. On an O-ring harness, pass the shaft through the ring from the back. Put the harness on and tighten the straps so the base rests firmly on the pubic bone. Cover the shaft with water-based lubricant and add some to your partner. Let the tapered tip do the work and enter gradually. Twist the dong as you pull to release it from a Vac-U-Lock plug.
Care
- Use water-based lubricant only on ULTRASKYN.
- Wash with warm water and mild soap after use, including the socket in the base.
- Dry thoroughly before storing.
- Store it separately from other toys, out of heat and sunlight.
- Do not boil it or put it in a dishwasher.
More on materials in our material safety guide.
Frequently asked questions
How thick is the Thin Dong?
The maker calls it a slim shaft design but gives no diameter. Length is 7 inches overall with 6.5 inches insertable. Ask the store for the width if you need an exact figure.
Is a harness included?
No. This is the attachment only. It fits any Vac-U-Lock compatible harness or accessory and also O-ring harnesses, which are sold separately. Any dildo-only use by hand is also possible.
How does it compare with the Code Black Raging Hard-Ons 8 inch?
This one is slimmer, an inch shorter, white, and made of dual-density ULTRASKYN with a tapered tip. The Code Black is solid black and heavily veined. The Thin Dong is the gentler choice.
Is it good for pegging beginners?
Its slim shaft and tapered tip suit beginners. Use it in a harness, which keeps the base outside the body, go slowly, and use plenty of water-based lubricant.
What color is it?
It is sold in white. This listing has that single color option, and the sources do not describe any other shade for this 7 inch Thin Dong attachment.
Add the Thin Dong
Add the Vac-U-Lock 7 Inch Ultraskyn Thin Dong to your cart for plain packaging, privacy-safe billing and a mystery gift in every order.
For adult use only. Read the instruction manual before first use. Specifications are the manufacturer's.
