ITEM NAME:110Pcs 5-Inch Hook and Loop Sanding Discs for Trackal Sander, Assorted Sand J1I2 110Pcs 5-Inch Hook and Loop Sanding Discs for Trackal Sander, Assorted Sand J1I2 abrasion resistance and anti-static. would fit any brand random Track sander, such as BLACK+DECKER, DEWALT, Bosch, Makita, PORTER-CABLE, etc. Hook and Loop Back - Makes grit removal & replacement quick and easy. Widely Applications - Works well on automotive, woodworking, marine, rubber, plastic, stone, glass and more. Number of holes - 8 holes. Hook and loop backing 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. The specific grit numbers you need vary by project and the material you're sanding, so follow the abrasive product manufacturer's recommendations. colour:Reddish brown Material:Alumina size:The discs are 5 inch in diameter The holes are 3/8 inch in diameter From one hole to the next around the circle is 1.0 inch From one hole directly across the disc to another is 2+9/16 inch Product size: about 125mm 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