Essential Accessory - 80 120 180 Grit commonest and standard size sanding bands use for smoothing surface and curved edges, polishing both soft and hard materials. Easy to Install - Drum mandrels with -expanding rubber cushion, making the sanding bands to the manderl firmly and acheiving better finishing. Univeral drum mandrels - 12 pieces reusable sanding drum mandrels contain 3 diameters: 1/2inch, 3/8inch & 1/4inch, 4 pieces for each size, common and standard size fit for all tools. Great Quality - These mini sanding bands are high hardness, durable and abrasion-resistant, will not apart during use, great for manicure, DIY woodworking, etc. Grit (Sanding Bands): 80 120 180 Grit (40Pcs of Each Type, 120Pcs) Inner Dia (Sanding Bands): 1/2inch, 3/8inch/, 1/4inch Height (Sanding Bands): 1/2inch Dia. (Mandrel): 3/8inch, 1/2inch and 1/4inch (4Pcs of Each Type, 12Pcs) Dia. (Mandrel): 1/8inch Package Included: 120pcs x Sanding Bands Sleeves 12pcs x Mandrel Colour:Wine Red Material:rubber Package Contents: 1 set x Drum Set Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.