Black Diamond Stopper Nuts

The Stopper Nuts by Black Diamond have a unique transverse taper that allows them to be placed securely in bottlenecks, flAres and shallow seams. Rounded corners ensure easy cleaning. Sizes 1, 2 and 3 have straight sides for maximum contact with the rock. Galvanized steel cable. Features of the Black Diamond Stopper Nuts Durable aluminum heads and steel cables Transverse taper is versatile in flAres, constrictions and parallel cracks Rounded edges for easy cleaning smaller sizes Are straight for better surface contact Sizes 1 and 2 Are for direct aid only