【100Pcs Set】10 pieces of 40# 60# 80# 120# 180# 240# 320# 400# 600# 800# grits. 【Meet the requirements】Very effective for general polishing; 8 grades can meet almost all your polishing requirements 【125mm Size Fit for Random Orbital Sander】Durable Velcro backing, hook and loop backing for quick connection, and pre-punched with 8 holes for dust extraction, strong and durable, easy to install and remove 【Suitable for grinding, polishing and derusting of metal, non-metal, wood, rubber, leather, plastics, stone, glass and other materials. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.