Features: 100% brand new and high quality. Made of alumina, strong polishing force, high wear-resisting degree and cost performance. Can work with polishing sticky backing pad, simple and easy to use. 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: Material: aluminum oxide Size: diameter 7inch (180mm) Type: Hoop and Loop, no hole Applications: Timber, Plaster, Metal, Painted surfaces. 60pcs Mixed Grit included:10pcs for each grit (60,80,120,180,240,320 Grit). Package included: 10pcs 60 grit Sanding Discs 10pcs 80 grit Sanding Discs 10pcs 120 grit Sanding Discs 10pcs 180 grit Sanding Discs 10pcs 240 grit Sanding Discs 10pcs 320 grit Sanding Discs.