Usage Tips:4Inch Sandpaper Pad Kit: Includes 100 sanding discs with grits from coarse to fine (40, 60, 80, 120, 180, 240, 320, 400, 600, 800; 10 each) and 1pc backing pad & 1/4inch drill adapter, meeting all your sanding needs from rough to fine polishing Material: Sandpaper discs made from premium aluminum oxide, these sand paper discs are flexible, wear-, and long-lasting, delivering excellent for prolonged, efficient sandingAccessories: includes a 4-inch hook and loop sanding pad and a 1/4inch drill adapter. The sanding pad is designed to fit a 4-inch backing pad with a 5/8-11 thread, ensuring a secure connectionEasy Installation: This 1/4inch drill adapter is designed for quick and easy attachment of sanding pads to variable-speed polishers, grinders, and household drillsWide Applications: Angle grinder sanding disc perfect for sanding, polishing, and rust removal on materials such metal, wood, rubber, leather, plastic, stone, and glassColour:As ShownMaterial:AluminaPackage Contents:100 x sanding discs 1pcs x backing pad1 x drill adapterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. KJ A--GFGFGFGF