This is an exact replacement for the complete set of belts included with the Original Knife and Tool Sharpener. Work Sharp Knife and Tool Sharpener abrasive belts are formulated, designed, and made in America by industry-leading abrasives manufacturer Norton for precision sharpening of high-strength steels. The grit symmetry, spacing, and backing flexibility are all designed to produce the optimal convex edge with minimal heating or material takeoff. If youve ever used a belt sander to sharpen, you know how quickly the steel heats and how much excess material can be removed if you arent careful. Our abrasives are a key component of our success in the sharpening world. Includes (2) belt of each grit: P80, P220, and 6000.