Hoffman Clamps w/ Chain

These Hoffman black plastic screw down nipple clamps are lined with small ribbed teeth for a firm grip, giving a hard gripping but pleasurable fit. Overall applied force is adjustable via the thumbscrews from just enough to hold the clamp on to as tight as you choose.

Diameter: 1.5" (40 mm)
Max. opening: 0.55" (14 mm)