Quick answer

To attach a Vac-U-Lock accessory to a harness, first ensure your harness has a compatible Vac-U-Lock plug or adapter. Then, firmly press the accessory onto the plug until it locks in place. Always check the connection before use.

Why Vac-U-Lock compatibility matters

Vac-U-Lock is a system where accessories attach via a universal plug, but not all harnesses include the necessary plug. Check your harness or dildo base for a Vac-U-Lock hole or adapter. If your harness lacks one, you may need a separate adapter or a different harness. The Knuckle Up accessory is designed to fit Vac-U-Lock toys, but it requires a compatible base to attach to a harness.

When to use a handle accessory like Knuckle Up

The Knuckle Up accessory provides a firm grip for manual use, but it is not a harness attachment itself. It attaches to a Vac-U-Lock toy to give you more control. If you want to use it with a harness, you would need to attach the Knuckle Up to the toy, then attach the toy to the harness via the Vac-U-Lock plug. However, this may add bulk and is not always necessary. Consider whether you need the extra grip or prefer a streamlined setup.

Steps to attach a Vac-U-Lock accessory to a harness

  1. Check harness compatibility: Look for a Vac-U-Lock plug or adapter on your harness. If missing, you'll need a compatible harness or adapter. Without a Vac-U-Lock plug, the accessory cannot attach securely.
  2. Prepare the accessory: Ensure the accessory's base is clean and free of debris. If using a toy with Knuckle Up, attach Knuckle Up to the toy first by pressing firmly onto the Vac-U-Lock plug. A clean connection prevents slipping and ensures a secure fit.
  3. Align and press: Align the accessory's opening with the harness plug and press firmly until it clicks or locks into place. Twist slightly if needed for a snug fit. A distinct click or resistance indicates it's locked; if it feels loose, it's not secure.
  4. Test the connection: Gently tug on the accessory to confirm it's secure. If it detaches easily, reattach and check for damage or misalignment. Never use a loose accessory; it could detach during use.

Product facts