Material: Made of ceramic with good heat dissipation that will not burn your nail beds. Functions: Great for sharpening, grinding, polishing and reshaping acrylic gel nails and removing dead skins, quickly achieve shiny smooth nails. Features: High hardness, hard wearing, high temperature resistant, corrosion resistance. 3 Coarse Degrees: F, M, C to satisfy different manicure needs. Application: For professional nail salon, beauty parlor, spa or personal manicure pedicure DIY. Specification: Material: Ceramic Size: Approx. Whole Length: Approx. 5cm/1.97inch Ceramic Head: 1.3 x 0.5cm/0.51 x 0.20inch Shank Diameter: 2.35mm/3/32inch Package Includes: 1 Piece Ceramic Nail Drill Bit Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store