1. It is made of high-strength fiberglass and coated with alumina abrasive using gravity sand planting or electrostatic sand planting. Therefore, it is durable, does not drop sand, and provides sharp grinding efficiency and long service life. 2. It has excellent chip removal capability, helping to prevent sandpaper from clogging and reducing dust pollution. The mesh cloth has good toughness, is not easy to deform or break, and offers impact resistance. 3. 30pcs 125mm (5 Inch) Hook and loop Mesh Sanding Disc 4. Specially designed for sanding drywall surfaces before painting, as well as for rust removal, grinding, and polishing of various metal surfaces. It can also be used for polishing wood, marble, and different types of mechanical equipment. Specifications: 80, 100, 120, 150, 320, 600 Grit Color: Brown Material: Fiberglass Package Contents: 30 x Mesh Sanding Discs (80, 100, 120, 150, 320, 600 Grit) Only the above items are included in the package; no other products are included. Note: Slight color differences may occur due to lighting and monitor display differences. A measurement tolerance of +/- 1-3cm is allowed.