It can be used in various industries such as coating surfaces, instruments, metals, composite materials, automotive manufacturing, electronic devices/architecture, automobiles, wood products, and mechanical processing, as well as polishing and grinding of decoration. Package: Sandpaper x 50 Specifications size: 90x140mm/3.54x5.51in Quantity of holes: 5 holes Hole diameter: 8mm/0.31in Package include: 10x60 Grit, 10x80 Grit, 10x120 Grit ,10x180 Grit ,10x240 Grit.