Please note, this item ships from an international seller. Expected delivery is 10-15 days. Specifications: Sanding bands size: 1/2 inch, 3/8 inch and 1/4 inch Drum mandrels size: 1/2 inch, 3/8 inch and 1/4 inch Sanding bands material: aluminum oxide Package include: 20 * 1/2 Inch sanding bands(80 grit) 20 * 3/8 Inch sanding bands(80 grit) 20 * 1/4 Inch sanding bands(80 grit) 20 * 1/2 Inch sanding bands(120 grit) 20 * 3/8 Inch sanding bands(120 grit) 20 * 1/4 Inch sanding bands(120 grit) 20 * 1/2 Inch sanding bands(240 grit) 20 * 3/8 Inch sanding bands(240 grit) 20 * 1/4 Inch sanding bands(240 grit) 20 * 1/2 Inch sanding bands(320 grit) 20 * 3/8 Inch sanding bands(320 grit) 20 * 1/4 Inch sanding bands(320 grit) 20 * 1/2 Inch sanding bands(400 grit) 20 * 3/8 Inch sanding bands(400 grit) 20 * 1/4 Inch sanding bands(400 grit) 20 * 1/2 Inch sanding bands(600 grit) 20 * 3/8 Inch sanding bands(600 grit) 20 * 1/4 Inch sanding bands(600 grit) 8 * 1/2 Inch drum mandrels 8 * 3/8 Inch drum mandrels 8 * 1/4 Inch drum mandrels Package Include - Comes with 360 pieces sanding bands and 24 pieces sanding drum mandrels, totally 384 pieces drum sanders set Universal Drum Mandrels - 24 Pcs shank reusable sanding drum are divided into in 3 diameters(1/2", 3/8" & 1/4"), each size 8 pieces. Common and standard size fit for all rotary tools like Dremel etc Essential Accessory - These sanding brands contain 6 sanding grits (80 grit, 120 grit, 240 grit, 320 grit, 400 grit, 600 grit) use for smoothing surface and curved edges, polishing both soft and hard materials, like home improvement, artwork and woodworks Easy Installation - drum mandrels with self-expanding rubber cushion, making the sanding bands close to the mandrel firmly and achieving better finishing; in case the sanding band fall apart from the mandrel while using, please make sure the drum have been screwed tightly and wear closely to the sleeve.Note: Please wear professional safety glasses to protect your ey