Features: Made from top aluminum oxide grain, durable and anti-static, provides a longer lasting grit. Pre-punched with 6 holes for uniform dust extraction, hook and loop design. The utility model has the advantages of convenient use, simple operation and low cost. Works well on metal and non-metallic materials of various complex surface rust, paint, deburring, solder joints sanding and polishing. Terrific for general polishing and has the ability to work with semi-rough finishes to refine them to a smooth luster. Specification: Material: Alumina Weight:208g Size: 90*90mm/3.5*3.5in Shape: Triangular Quantity: 50pcs Color: As pictures shown Package Includes: 50 x Sanding Paper Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1、Made from top aluminum oxide grain, durable and anti-static, provides a longer lasting grit.? 2、?Pre-punched with 6 holes for uniform dust extraction, hook and loop design. 3、The utility model has the advantages of convenient use, simple operation and low cost. 4、Works well on metal and non-metallic materials of various complex surface rust, paint, deburring, solder joints sanding and polishing. 5、Terrific for general polishing and has the ability to work with semi-rough finishes to refine them to a smooth luster.