Features: *Provide users with a comfortable and safe operating environment with high flexibility and high grinding efficiency. *Good heat dissipation and self-sharpening.Low noise and long service life. *Especially suitable for irregular curved surface good heat dissipation do not burn the workpiece can grind out the fine sand grain. *Working with Angle Grinder for stone glass marble grinding and polishing. Specifications: Material: Nylon fiber Color:white Diameter: approx 100mm(4inch) Hole size: 16mm(5/8inch) Thick-ness: approx. 13mm Grit:120# 600# 1000# 1500# 2000# 3000# *Used in polishing of metallurgy machinery light industry wood products furniture metal plastic melamine building materials automobiles leather textile and other industries. Package Included: 6Pcs polishing wheel Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.