Quick answer
The Signature Series Black Extension Kit lets you extend and combine cuffs, collars, and harnesses using two extender straps and multi-use D-rings. Follow the steps below to set up new configurations safely.
Why use an extension kit?
The Signature Series Black Extension Kit is designed to work with other Signature Series pieces, such as thigh cuffs, collar, cuffs, and spreader bars. It gives you flexibility to adjust fit or create new restraint combinations without buying additional gear.
A common mistake is assuming the straps only work one way. The D-rings let you attach them at different points, so experiment with positions to find what works for your scene.
Step-by-step setup guide
- 1. Attach the D-rings: Slide a D-ring onto the strap loop of your cuff, collar, or harness. Make sure the ring sits flat and the strap passes through the ring without twisting. Check that the D-ring is fully seated in the loop before tightening. A loose ring can slip during use.
- 2. Connect the extender strap: Clip one end of the extender strap to the D-ring. Use the snap hook or buckle, depending on your strap design, and ensure it locks securely. If the strap has a buckle, double-check it is threaded correctly. A reversed buckle can release under tension.
- 3. Adjust the length: Pull the free end of the extender strap to your desired length. Most straps have multiple adjustment holes or a sliding mechanism. Lock the chosen setting. Leave at least 2–3 inches of excess strap after locking to avoid pinching or accidental release.
- 4. Secure the second connection: Attach the other end of the extender strap to a second cuff, collar, or anchor point using the same D-ring method. Test the connection by gently pulling. Never use the kit to suspend weight. It is designed for restraint extension, not load-bearing suspension.
- 5. Test the full setup: Have your partner move through a comfortable range of motion. Check that all connections are tight and the straps do not dig into skin or restrict circulation. Always keep a safety cutter nearby when using restraints. The kit is not designed for quick-release under tension.
Product details
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Signature Series Black Extension Kit: Includes two extender straps and multi-use D-rings, compatible with other Signature Series pieces like Thigh Cuffs, Collar, Cuffs and Spreader Bar. You can mix and match these components to extend or reconfigure your existing restraints without buying a whole new set.
Signature Series Black Extension Kit