【Material】Made from aluminium oxide abrasive,durable and anti- static.Good choice for sanding and polishing. 【Perfect Size】125mm Size Fit for all 5 inch sanding machines, especially Random Orbit Sander. 【Easy To Install And Remove】The 8 grades can meet almost all your polishing requirements.Hook and loop backing for quick fitting, and pre-punched with 8 holes for dust extraction,velcro back easy and quick to stick, sturdy, durable and practical. 【Wide Application】Ideal for polishing metal, rust removal, wood work, plastic, leather, rubber and glass. From rough to fine satisfying your most polishing requirements with good sanding effect. 【Sturdy construction】designed for sanding flat surfaces, the replacement pads are made of rubber which can serve you for long time and engineered to provide smooth finishes, prevents damage to disc holders. Feature: 1. Sanding discs are made from aluminium oxide abrasive, durable and anti-static. 2. Pre-punched with 8 holes good for dust extraction. 3. Designed for sanding flat surfaces, the replacement pads are made of rubber which can serve you for long time and engineered to provide smooth finishes, prevents damage to disc holders. 4. Apply to metal and non-metal, wood, rubber, leather, plastic, stone, glass and other materials grinding, polishing and so on. Specification: Material: sandpaper/flannelette Package includes 10 sheets of each grit: 80/ 180/ 240/ 320/ 400/ 800/ 1000/ 1500/ 2000/ 3000, total 100 pieces