Perfect ACCESSORY FOR HOME IMPROVEMENT, ART CRAFT AND WOODWORKS - 120 grits can use for smoothing inside and outside curved edges, surface preparation, finishing soft and hard exteriors like wood, woodworks, fiberglass and to shape fine woodcraft designs EASY TO INSTALL - The self-expanding rubber cushioned drum mandrels were specially designed to embrace the sanding bands with a snug fit, keeping the sandpaper sleeves in place, for extra fine artwork COMPATIBLE WITH - Common and standard size fit for all rotary tools like Dremel etc Color: Black + purple Sanding Bands Size: 1/2, 3/8 & 1/4 inch Sanding Bands Material: Aluminum oxide Sander Drum Size: 1/2, 3/8 & 1/4 inch and 1/8 inch Shank Package Contents: 20 * 1/2 inch Sanding Bands 20 * 3/8 inch Sanding Bands 20 * 1/4 inch Sanding Bands 2 * 1/2 inch Drum Mandrels 2 * 3/8 inch Drum Mandrels 2 * 1/4 inch Drum Mandrels Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.