Material: Aluminum Oxide Size: 150*105*1mm Color: Reddish Brown Specifications Tolerance: +/- 2 mm Back technique: Hook and Loop Backing : D paper backing Shape: Triangle Coarse, medium, fine, extra fine grades Grit: 40# 60# 80# 100# 120# 150# 180# 240# 320# 400# 600# 800# 1000# 1200# 1500# 2000# Number of holes: 11 Holes Usage and Function: 40 # -240 # Coarse grinding series For grinding hard and rough things, such as metal wood, etc. 32 # -600 # Fine grinding series for secondary grinding 800 # -2000 # Fine grinding series mostly used for wooden furniture, amber, jade, bodhi, etc. Features: 1. Sanding Discs Pads are easy to be split into two halves,With serrated parts cutting.Hook and Loop, easy and quick to stick. 2. Sanding sheets are made from aluminium oxide abrasive, durable and anti-static. The grit is larger, the polish effect is finer. 3. Apply to metal and non-metal, wood, rubber, leather, plastic, stone, glass and other materials grinding, polishing and so on. 4. 16 kinds of detail and grit Sandpaper, Coarse to fine,covered all grit grades. Package included: Mouse Sander paper