A&H Abrasives 919387, 5-pack, Sanding Belts, Aluminum Oxide, (y-weight), 43x75 Aluminum Oxide 180 Grit Sander Belt The best abrasive belts for general woodworking applications. Specifications: Width=43 in, Length=75 in, Grit=180 Specifications: Abrasive=ALUMINUM OXIDE, Abrasive Bond=PHENOLIC RESIN, Backing=CLOTH Specifications: Backing Weight=Y, Treatment=ANTI-STATIC