The Makita A-34562 is a pack of 10 1/2 x 21-Inch 40-Grit Abrasive Sanding Belts These are used for wood, plastics, resins and metals. The Sanding Belts fit Makita model 9032 3/8-Inch Belt Sander. Features: General-purpose aluminum-oxide construction For wood, plastics, resins and metals What's In the Box: Makita A-34562 1/2 x 21-Inch 40-Grit Abrasive Sanding Belts 10-Pack