What is a Vac-U-Lock attachment? Vac-U-Lock is Doc Johnson's plug-and-socket system for strap-on play. A Vac-U-Lock dildo has a hole in its base. That hole pushes onto a plug on a Vac-U-Lock harness, handle or other accessory and holds by friction and suction. It lets you swap dildos on one harness without undoing straps. This attachment is also O-ring compatible, so it can be worn in a standard ring-style harness if you do not own Vac-U-Lock gear.
Code Black Raging Hard-Ons 8 inch Vac-U-Lock dong
The Code Black Raging Hard-Ons Dong is an 8 inch dildo attachment from Doc Johnson's Vac-U-Lock range, finished in solid black. The surface is described as plush to the touch, and the shaft is heavily veined with a spiral pattern that adds texture along its length. The material is phthalate-free and body-safe.
It connects to any Vac-U-Lock set or accessory. It also fits O-ring harnesses, which makes it a flexible choice if you use more than one harness or plan to change systems later.
Best for: For strap-on users who want a textured, mid-to-large black dildo that fits both Vac-U-Lock and O-ring harnesses. The pronounced veins suit people who like to feel texture. Those new to penetration may prefer a smoother, shorter attachment.
At a glance: Vac-U-Lock attachment · 8 in · Heavily veined shaft · O-ring compatible · Phthalate-free
Key features
| Vac-U-Lock base |
Pushes onto any Vac-U-Lock plug, harness or accessory. |
| O-ring compatible |
Also fits standard ring harnesses, so one dildo covers both systems. |
| Heavily veined shaft |
Raised veins and a spiral pattern add stimulation with every stroke. |
| Plush surface |
A soft outer feel over a solid body. |
| Phthalate-free |
Made from body-safe material without phthalates. |
Specifications
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Length: 8 in (from the product name)
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Fitting: Vac-U-Lock socket; O-ring compatible
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Material: Phthalate-free, body-safe material (type not stated)
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Color: Black
How to use
For a Vac-U-Lock harness, push the hole in the dildo's base firmly onto the plug until it seats. For an O-ring harness, feed the shaft through the ring from behind so the base sits against the backing. Tighten the harness, then apply water-based lubricant to the shaft. Begin slowly so the receiving partner can get used to the veined texture and the length. To detach from a Vac-U-Lock plug, twist as you pull.
Care
- Use water-based lubricant, the safe choice when the material is not specified.
- Wash with warm water and mild soap after use, working around the veins and the base socket.
- Dry it fully, including inside the Vac-U-Lock hole.
- Store it on its own, away from other toys, heat and sunlight.
- Do not boil it; the material type is not stated.
More on materials in our material safety guide.
Frequently asked questions
Does a harness come with it?
No. This is the dildo attachment only. It works with any Vac-U-Lock set or accessory and with O-ring harnesses, all of which are sold separately. Check that your harness is one of those two types.
How long and thick is it?
The name gives the length as 8 inches. Neither source lists the insertable length or the diameter, so check with the store if you need the exact width before buying.
Can I use it by hand, without a harness?
Yes. It can be held and used like any dildo. The base is shaped for the Vac-U-Lock plug, so it has no suction cup and will not stick to a surface.
Is it safe for anal use?
Only when it is secured in a harness or on a Vac-U-Lock handle, which stops it traveling too far. The sources do not describe a flared base, so do not use it loose for anal play.
What is the texture like?
The shaft has heavy raised veins and what the maker calls a spiral design. The surface itself is soft and plush. Expect clear, noticeable texture throughout. It is not a smooth dildo.
Add the Code Black dong
Add the Vac-U-Lock Code Black Raging Hard-Ons Dong 8 Inch 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.
