Size50 sheets of mouse sanding, grit 40/60/80/120/240, 10 sheets for each grit, can meet your different needs. Practical designBlades of mouse sander with 2 extra bits for replacement, suitable for Black and Decker 140mm palm sander and other 140mm detail sanders. Wide Application5 sandpapers, assorted rough to fine, to meet almost all your general polishing requirements, ideal for polished metal, rust removal, wood, plastic, leather, rubber, glass and other materials. High quality materialThe sanding pads with velcro are made of aluminum and anti-static. BackrestHook and loop backrest, easy and quick to stick, sturdy and durable; Pre-punched with 4 holes to remove dust. Product Description Contents: 10 x 40 Grit Mouse Sanding Sheets 10 x 60 grit mouse sanding sheets 10 x 80 grit mouse sanding sheets 10 x 120 grit mouse sanding sheets 10 x 240 grit mouse sanding sheets Material: alumina. Colour: reddish brown Dimensions: 170 x 140 x 95 mm Features: Good choice for sanding and polishing. Mouse sanding blades are made of aluminum oxide, which is abrasive, durable and anti-static. The grain is larger, the polishing effect is finer.