Feature: 1. The cleaning brush is designed to clean the nails before and after the manicure, practical for use. 2. It can be used to clean the dirt in the cracks of nail drill polishing head, convenient to use. 3. High‑density brush hair, does not fall off, for use. Important and necessary for nail drill. 4. Handle diameter: 2.35mm, suitable for all nail drill pens on the market, easy to install and use. 5. Multiple colors of brush are optional, you can choose according to preference. Suitable for home use and nail salon. Specification: Condition: Brand New Item Type: Nail Drill Bit Cleaning Brush Brush Hair Material: White: wool, brown: horsehair, black: nylon (3 color optional) Handle Diameter: Approx. 2.35mm / 0.1in Product Use: Clean the dirt in nail cracks, use it with a nail drill pen Package List: 1 x Cleaning Brush