Specification: Item Type: Nail Drill Bit Sanding Cap Size: Approx. 13 x 8mm / 0.51 x 0.31in Sanding Shank Size: Approx. 50 x 5mm / 1.97 x 0.2in Feature: Designed for polishing and trimming nails to keep them beautiful and neat; the sanding surface is used to polish the uneven surface of the nails, durable and easy to use; uses high-quality fine sand that doesn't easily fall off, can be used freely. Features: 1、Easy to Use: The size is approx. 13 x 8mm / 0.51 x 0.31in, easy to install and disassemble, very convenient to use. 2、Widely Used: Nail polishers can meet the needs of various nail art and many applicable scenes, with high strength, high efficiency, and good effect. 3、Robust and Durable: The sanding surface is used to polish the uneven surface of the nail, with a long service life, safe and reliable. 4、Multifunctional: Suitable for processing nails, glass, plastic, metal, stone, ceramic tiles, etc. Convenient grinding and polishing, high efficiency, and stable performance. 5、High-Quality Sandpaper: Made of high-quality materials, strong and durable, and perfect grinding effect. Uses fine sand that doesn't easily fall off, you can use it at will. Package List: 50 x Sanding Cap 2 x Shank