Perfect Compatibility： This 1/2" x 12" Replacement Belt Kit is specifically engineered to work flawlessly with the Work Sharp Original Knife & Tool Sharpener and Combo Knife Sharpener (WSKTS & WSKTS-KT). It ensures a seamless fit and optimal performance, allowing you to maintain the sharpness of your knives and tools with ease. | Comprehensive Belt Set： The kit comes with 24 Pcs 1/2" X 12" Knife Sharpener Sanding Belts. It includes a diverse range of grits such as 4 pcs 80 Grits Zirconia belts for heavy-duty coarse sharpening, 4 pcs 120 Grits Zirconia belts, 4 pcs 240 Grits Alumina belts for medium-level shaping, 4 pcs 400 Grits Alumina belts, 4 pcs 1000 Grits silicon carbide belts for fine-tuning, and 4 pcs 1200 Grits silicon carbide belts for a polished finish. | As a professional sanding belt manufacturer, after hundreds of trials, we find that for a knife sharpner, the best material for coarse grit is zirconia, for medium grit is alumina and for fine grit is silicon carbide. So we provide this Replacement Belt Kit for perfect sharpening. | Precision engineered dual directional tape joints allow a smooth transition in either direction. | Anti-clogging compounds extend the lifetime of the belts.