specification: Item Type: Nail Grinder_x000D_Product Material: Diamond_x000D_Specifications: 2 boxes, each has 6pcs. Features: 1Grinding Bits: The surface roughness of the drill varies from top to bottom, which can quickly remove nail glue for cleaning, shaping, cutting, smoothing and removal, to meet your various needs. 2Good Material: Made of diamond, reliable strength, high durability, low cutting performance, less dust, can quickly and well reshape, polish, smooth, polish, sculpt and smooth gel nails. 3Simple in Use: The drill bit can be rotated to the right or left for smooth CW and CCW cuts, ideal for left and right hands, no need to change other size during the job. 4Various Types: You will get 12 styles of nail drills that fit most drills, nail machines, most gel nails and experienced manicurists or beginners. 5Smart Storage: Comes with a matching case for protection and convenient storage to keep these nail drills organized. PackageList: 12 x Nail Grinder Bit 2 x Storage Box