The Replacement Abrasive Belt Kit is for the Work Sharp Knife & Tool Sharpener Ken Onion Edition Blade Grinder Attachment, Item 45478, sold separately. Kit includes 5 1in. x 18in. abrasive belts 1 P120 extra coarse grit Norton Ceramic, 1 X65 coarse grit Norton Norax 65 micron belt, equivalent to P220 1 X22 medium grit Norton Norax 22 micron belt, equivalent to P1000, 1 X4 fine grit Norton Norax 4 micron belt, equivalent to P3000 and 1 12,000 extra fine grit Micro-Mesh belt. Belts only fit the Ken Onion Edition Blade Grinder Attachment and WS3000 Belt Sharpening System Attachment. These premium-grade, engineered abrasives are long lasting and designed for knife and tool grinding, sharpening and honing applications. U.S.A. Belt Size in. x in. 1 x 18, Grit 120, 65, 22, 4, 12,000, Product Type Abrasive belt, Case Included No. For use only with Work Sharp Knife & Tool Sharpener Ken Onion Edition Blade Grinder Attachment, Item 45478 Includes five 1in. x 18in. abrasive belts P120 extra coarse grit, X65 coarse grit , X22 medium grit, X4 fine grit and 12,000 extra fine grit Premium grade, engineered abrasives are long lasting Designed for knife and tool grinding, sharpening and honing applications Not for use on the WSKTS or base model WSKTS-KO