3M™ Cloth Belts are designed for portable sanding Tool. These belts have abrasive grain and premium aluminum oxide blended minerals on a heavy Y weight cloth backing. The film splice allows for the belt to be run bi directional, making it economical and durable. Designed for portable sanding Tools. 3M™ Cubitron™ abrasive grain and premium aluminum oxide blended minerals on a heavy Y weight cloth backing. Film splice allows for the belt to be run bi-directional. Economical and durable. Available in multiple grits.