QUALITY MATERIAL: Aluminium oxide material is durable and anti-static, with suitable grits, you will make outstanding sanding and polishing works SANDER SHEET SIZE: The size is 140 x 140 x 80mm, with 4 holes for dust extraction, suitable for all detail sander of 140mm base HOOK AND LOOP DESIGN: Popular hook and loop backing technology makes sander paper changing easy and quick, saving you time and energy FULL RANGE GRITS: GRITS OF 40/60/80/120/180/240 covers almost all your sanding needs, please always choose suitable grits from coarse to fine before sanding WHAT YOU GET: 10Pcs x 40grits, 10Pcs x 60grits, 10Pcs x 80grits, 10Pcs x 120grits, 10Pcs x 180grits, 10Pcs x 240grits