16 abrasive sheets in various grits for universal use from coarse to fine grinding on almost any material. Aluminum oxide and full resin bond guarantee fast material removal, minimum glazing and long tool life. Price includes: 4 of each type of Ø 4-1/2 in sanding sheet (60, 80, 120, 180 grit), unperforated, for use with or without dust extraction system, hook and loop attachment. Savings compared to individual purchase.