Comfort Safe Blades at 50mm long are suitable for cutting and shaving. These injectable and patented blades with the comfort blade system makes changing the blades easier and safer. One side of the Comfort Safe Blades have a protected safety serrated edge and the other side bare for professional use. Also stainless, hardened special steel with triple treatment. Chrome-nitrate platinum sealing topped with a teflon layer for optimum gliding quality. Blades come packaged in a carton of 100 (10 individual packages of 10).