Product Features Package includes: comes with 360 pieces sanding bands and 24 pieces sanding drum mandrels, a total of 384 pieces drum sanders set. Essential 6 grits accessory: These rotary sanding brands contain 6 sanding grits ( 80 grit, 120 grit, 240 grit, 320 grit, 400 grit, 600 grit ) and 3 diameters (1/2", 3/8" & 1/4") . Each grit and size has 20 pcs sanding bands for your use. Univeral drum mandrels: 24 Pcs shank reusable sanding drums are divided into 3 diameters(1/2", 3/8" & 1/4"), each size 8 pieces. Common and standard size fit for all rotary tools like Dremel etc. Easy installation: Make sure the drum has been screwed tightly, drum mandrels with self-expanding rubber cushion, making the sanding bands close to the mandrel firmly and achieving better finishing; Note: please wear professional safety glasses to protect your eyes, because maybe there are flying grits when the sanding drum turning at high speed. Great compatibility: Commonest and standard size drum sander set which are widely applied in smoothing the surface and curved edges, polishing both soft and hard materials, like home improvement, artwork, woodworks, and other DIY finishing and working . Note ??please wear professional safety glasses to protect your eyes, because maybe there are flying grits when the sanding drum turning at high speed. Product Specification Type Sanding bands and Drum Mandrels Kit Quantity384Pcs(360 pieces sanding bands and 24 pieces sanding drum mandrels) Grit6 Sanding Grit(80 grit, 120 grit, 240 grit, 320 grit, 400 grit, 600 grit) Sanding bands materialAluminum oxide Sanding bands size1/2 inch, 3/8 inch, and 1/4 inch Drum mandrels size1/2 inch, 3/8 inch, and 1/4 inch Suitable forfor all rotary tools like Dremel etc Fit forCommonest and standard size drum sander set Applicationsmoothing the surface and curved edges, polishing both soft and hard materials Application2home im