We made these beaded chains with clamps available for anyone who already has a collar but wishes to add a high quality set of nipple clamps. The clamping pressure on the rubber tipped clamps are fully adjustable. The weighty chain with black beads will give a pleasurable tugging sensation on your nipples via the clamps that can provide everything from a sadistic pinching sensation to a light squeeze. The chains have a quick release clip on them so that they can be attached to any collar that you already have. Product Description material：Metal chains with beads, rubber tipped clamps Chain length (From Clip to O-ring, Clamp not included)：13" / 33cm