These sanding discs have special sharp, durable silicon carbide grains that give you a fast and exceptionally long-lasting polishing. Professional, safety, high efficiency and low consumption. A great choice for you. Features: Made of silicon carbide, strong polishing force, high wear-resisting degree and cost performance. Can work with polishing sticky backing pad, simple and easy to use. Pre-punched with 8 holes for uniform dust extraction. Professional, safety, high efficiency and low consumption. Improved abrasion performance, abrasive will not easily fall off. Used in furniture, hardware and automobile repairing. For surface polishing of iron, paint, electronics, wood furniture and many kinds of solid wood plank. Specification: Condition: 100% Brand New Item Type: Sanding Discs Material: Silicon Carbide Granularity: 40#, 60#, 80#, 120#, 240#(Each For 10PCS) Size: Approx. 125mm / 4.9inch Weight: Approx. 389g / 13.7oz Package List: 50 * Sanding Discs