Premium Quality: The sanding discs are made of high-quality zirconium oxide particles, offering high abrasion resistance and hardness, and lasting longer than standard aluminum oxide discs. Cost-Effective: This 2-inch quick change disc set includes 150 pieces of 80-grit discs, providing ample supply for daily use and replacements, ideal for home, maintenance, and construction applications. Quick Change & Easy to Use: Simply attach the disc to the mandrel for use with a compatible pneumatic drill, electric drill, or die grinder. (Drill arbor not included.) Strong Compatibility: These quick change sanding discs are compatible with various power tools, including pneumatic grinders, die grinders, and electric drills. Wide Applications: Ideal for surface preparation on metal, wood, plastic, and steel. Suitable for rust removal, paint stripping, sanding, and polishing tasks. Color: As shown Material: Aluminum oxide Package Contents: 150 x Sanding Discs Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.