FOR VARIOUS SURFACES: Includes 50 sanding discs of 6 inches in diameter with 15 holes, available in grits 60, 80, 120, 180 and 400. Ideal for DIY, woodworking, polishing metals and plasterboard. HIGHEST EFFICIENCY: Using PET material backing film, there is a 150mm thick green aluminum oxide layer in the middle, This material provides better heat dissipation and a better finish, which can extend the product life and increase sanding efficiency. STURDY AND DURABLE: Our sandpapers use high-quality, tear-resistant aluminum oxide abrasive, which is sharp and durable to extend the product life. NOT EASY TO DETACH: The use of innovative hook and loop design and a double adhesive layer on the back of the sanding discs ensures strong adhesion and safety when sanding. DRY AND WET USE: Thanks to the waterproof adhesive, our sanding discs are suitable for use in dry and wet environments, increasing their versatility and adaptability.