→ Hello: Welcome to my store→ → Number of holes - 8 holes. → colour:Reddishbrown → Material:Alumina → size:The discs are 5 inch in diameter → would fit anybrand random Track sander,Hook and loop backing makes grit removal & replacement quick and easy. → abrasion resistance and anti-static,Hook and Loop Back - Makes grit removal & replacement quick and easy. → Can be used with a polishing compound, 11 grades can meet your various polishing needs. → The grits are marked on the back of the sandpaper for easy identification. → Widely Applications - Works well on automotive, woodworking, marine, rubber, plastic, stone, glass and more. → Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. → Package Contents: → 10 x 40 grit sanding discs → 10 x 60 grit sanding discs → 10 x 80 grit sanding discs → 10 x 120 grit sanding discs → 10 x 180 grit sanding discs → 10 x 240 grit sanding discs → 10 x 320 grit sanding discs → 10 x 400 grit sanding discs → 10 x 600 grit sanding discs → 10 x 800 grit sanding discs → 10 x 1000 grit sanding discs