Andis CeramicEdge Blades use advanced technology and are more durable than other imported ceramics. CeramicEdge Blades stay up to 75% cooler than traditional steel blades. Certified Zirconium Oxide Ceramic improves blade durability for longer lasting blades and break resistance when changing blades. These professional grooming blades fit all Andis AG, AGC, BGC, MBG and Oster 76, 111, and A-5 Models. Carbon steel.