General description 100 pieces of 3 inch (75mm) round sanding discs made from dry sandpaper, designed for use with sanding disc cleaning tools and Dremel accessories. These sanding discs are suitable for various applications including grinding putty, wall surfaces, wood products, plastic, and metal. Technical specifications Diameter: 3 inches (75mm) Stem: 3mm Grain: 3000 grit (100 pieces per grit) Usage Stick on the corresponding size backup pad Compatible with electric or pneumatic tools Ideal for sanding hard and soft materials Other information Resists moisture and heat Good wear resistance Durable and practical Easy to use Package includes: 100 pieces of sandpapers