Specifications:Easy to put on and take off, non-slip.Grinding wheels are suitable for various wood processing and metal processing materials.40 to 320 coarse grains for heavy removal or carpentry.Widely applicable, ideal for polished metal, wood, jade and so on.Polishing stick plate supporting the use, easy and simple to use.Item Name: Sanding DiscMesh: 40 , 60 , 80 , 100 , 120 , 150 , 180 , 240 , 320 Quantity: 100PcsFeatures: Durable, Wear Resistant, Multi-purposes, Non-slip, RoundOuter Diameter: 125mm/5" (Approx.)Notes:Due to manual count, there may be slight difference of 1-2 pieces in the quantity. Hope you can understand, thank you.Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:100 x Sanding Discs