This bottom blade is a replacement part made specifically for the Oster Clipmaster clipping machine. It starts as fine-grain carbon steel that is heat treated for wear resistance, then run through a cryogenic deep-freeze process that hardens the edge and helps it hold sharpness through repeated use. Each blade is hand lapped afterward for a smooth, even cut finish. It is sold as a single bottom blade and pairs with a compatible top blade already fitted to the clipper. Installation involves attaching the blade to a Single Speed or Variable Speed Clipmaster machine following the clipper's operating instructions. The blade is intended for detailed body clipping tasks and should be handled carefully and kept away from children when not in use.