[Superior quality] The grinding wheel sandpaper has an alumina particle structure. It has good sanding effect and better durability. Very suitable for polishing, cleaning, etc. [Easy to use] The sand disc has a hook and a loop. This design makes it easy to install and remove the sandpaper, maintains a firm grip, and prevents it from falling during use. Greatly simplify your work. [Compatibility] 125 discs with a diameter of 125 mm, suitable for random orbital sanders of all brands. 8-hole design, efficient dust collection, provide perfect cleaning and polishing effect. [Use in wide areas] Round grinding wheels can be used in many areas: automobiles, industry, carpentry, ships, etc. It is very suitable for grinding and finishing wood, rubber, leather, plastic, stone, glass and metal. Miscellaneous grain bag 125 grains in total: from coarse to fine to perfect your grinding and polishing job.