Made of fine quality material, easy to install and operate,With the use of various types of belt drive for efficient grinding.Suitable for all kinds of wood, furniture, metal and non-metal grinding and polishing.Widely used in metallurgy, machinery, shipbuilding, light industry, leather, wood, building materials, textile and other industries.Grit: 40#, 60#, 80#, 100#, 120#, 150#, 180#, 240#, 320#, 400#, 600#, 800#, 1000#(optional).Size: 25 * 330mm / 1.0 * 13.0in (optional).60 mesh to 150 mesh: Grit series is used to polish hard, rough, rough and other things such as metal, wood, wall, etc.180 mesh to 320 mesh: commonly used for secondary polishing, some less demanding can be directly polished.400 mesh ~ 600 mesh: Fine polishing, mainly for red furniture, amber bodhi, etc.Material: alumina.Package Contents:10*Sanding belts,(Abrasive belt only).Reminder: Sanding Belt only, other accessories demo in the picture is not included,thanks.Note:1.Please allow 1-3cm differences due to manual measurement.2. Due to the difference between different monitors, please understand that the picture may not reflect the actual color of the item.