This cleaning brush is made of natural wool and ABS. It feels soft, has good elasticity, and is moderately soft and hard. It is suitable for cleaning computers, mobile phones, screens, keyboards, cameras, digital products and instruments. Beautiful design can be carried with you. It has two levels of adjustment, suitable for any scene. The black brush has matte finish, high-end atmosphere, and the silver brush has metal texture. Support customization. 4 15/16"L x 1"W x 5/8"H