1. Material: steel wire + rubber wool
2. Durable material, easy to clean, convenient to carry, comfortable hand feeling
3. Steel wire + rubber bristle brush head, easy to clean sanding dust, convenient to use
4. One brush can be used for two purposes, soft and hard brush can be used to clean the nail polishing head
5. Weight: about 8 g
6. Size: about 4.5 x 2.2 cm