Good Material: Made from alumina granules, which is durable and antistatic, it can provides long-lasting and efficient sanding, makes sanding easier. Assorted Sanding Pads: 4 different grits sandpaper , assort from rough to fine satisfying your polishing requirements for perfect cleaning and polishing effects. 217mm sanding discs for random Track : 217mm in diameter, pre-punched with 6 holes for dust extraction, Hook and loop backed, suitable for all 217mm random Track . Widely Used: Applied to materials such as metal, non-metallic materials, leather, plastic, wood, rubber, stone and glass, for perfect cleaning and polishing effects. size: 217mm diameter Material: Aluminium oxide colour: red Package Contents: 10 x 40# Sanding Discs 10 x 60# Sanding Discs 10 x 80# Sanding Discs 10 x 120# Sanding Discs Only 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.