35 pieces, consisting of: 5 pcs. yellow nylon sand disks (grob) with 2 inches each, 5 pcs red nylon sand discs (medium) with two inches each and 5 pcs blue nylon sand slices (fine) with a two inch each, five pcs. sand paper slices 60# with 2 inch, 5 pieces. sandpaper slices 80# with two inches each and five pieces of sand paper panes 100# with a 2 inches, 1 pcs. disc holder 1/4 inch and 4 pcs. polishing slices made of black diamond, max. operating speed 20,000 rpm