Practical design: suitable for Black and Decker 140mm detail palm sander and other 140mm detail sandersAbrasive material: aluminum oxide, durable and anti-static, good choice for sanding and polishingBacking: hook and loop, easy and quick to stick, sturdy and durable; pre-punched with 4 holes for dust extractionWide application: 5 grains of sandpaper assortment from rough to fine to satisfy almost all your general polishing requirementsPackage includes: 50 pieces mouse sanding sheets, 10x 40/60/80/120/240 grit Product description/p> Features Good choice for sanding and polishing. The mouse sanding sheets are made of aluminum oxide abrasive, durable and anti-static. The grit is larger, the polishing effect is finer. Suitable for using with 140mm detail palm sander and Decker sander and other 140mm detail sanders. Hook and loop back, and pre-punched with 4 holes for dust extraction, easy to use. Wide application. Apply to metals and metals, metals, wood, rubber, leather, plastic, stone, glass and other materials grinding, polishing and so on. Features: Abrasive: Aluminum Oxide Size: 140*95mm Color: Reddish Brown Pre-punched with 4 holes Backing Technique: Hook and Loop Grades Coarse, Medium, Fine, Extra Fine(40/ 60/ 80/ 120/ 240 ) Package Includes 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 Note: Due to manual measurement, the size may have an error of 2 cm/1 inch; due to different screens and angles, the color and size may be slightly different, thank you for your understanding!