The Amulet D-Vice Adjustable Nipple Clamp Set is an efficient training tool in the skill of endurance and sensation play. These exquisite clamps come outfitted by having an adjustable barrel therefore the wearer can graduate to some tighter fit. The black rubber coated clips are made to accommodate natural curvature from the nipple. Use fantasy, this devious set features a convenient O ring that may be weighted, laced, etc. It's your domain. You choose! Measurements: Can speak in confidence to roughly .75 inches wide, closes completely. Materials: Durable brass with Thermoplastic Rubber TPR coated tips. Color: Silver and black. Category: Master Series, New Items, Nipple Toys. Amulet D-Vice Adjustable Barrel Clamps from XR Brands