We call them "Wrap & Tap" pliers because the jeweler can wrap ring stock around the barrel shaped jaw, then tap it lightly on a mandrel and instantly make a complete ring, half, or quarter shank for repair. Two sizes are available: 14 mm barrel for ladies rings and 19 mm barrel for gents rings and coin mountings. Pliers are especially good for hollow rings and rings with a design on one side, because the lower jaw is covered with PVC tubing and cannot scratch or mar. You get a perfect circle time after time, with stock up to 2 mm thick. You ll get perfect rings every time while saving time at the bench. Stainless steel with PVC cushion grips. 6" long overall.