Features and Benefits: 80 grit sanding belt, great for heavy use and high heat applications like spot weld removal and weld prep; Long lasting German sourced Zirconia abrasive material; Includes 10 pieces; Works with most brands of belt sanders; Size: 1/2" x 18"; The Astro Pneumatic Tool 303780Z Zirconia 80 Grit Sanding Belt 1/2" x 18" - 10-Piece is for heavy use and high heat applications at a greatly reduced price. These belts are long lasting German sourced Zirconia abrasive material and are designed to fit nearly all belt sander brands and styles.