【Grits】-Including the most used grits: 2 X 40/60/80/120/180/240/320/400 grits, total 16pcs 75 x 533 sanding belt, meet your daily sanding and polishing needs 【Material】- The sanding belts are made of durable open-coat aluminum oxide grains and fully resin bonded, the quality craftsmanship allows the sand grain even, providing fast and durable sanding 【Connection】- Precisely designed two-way belt joint, diagonal connection eliminates the splicing bump, the interface of the belt sander belts is flat, firm and not easy to break under pressure 【Application】- Suitable for belt sander 533X75 mm (21X3 inch) - providing coarse to fine sanding, stripping and sanding for wood, aluminum, fiberglass, rubber, plastic, stone and non-ferrous metals ect. 【More Grits】-Very complete grit size from coarse to fine 40/60/80/120/180/240/320/400, meet all your sanding work 【Grits】-Including the most used grits: 2 X 40/60/80/120/180/240/320/400 grits, total 16pcs 75 x 533 sanding belt, meet your daily