Description This is an electric hammer dust collector, made of premium silicone material, durable and practical to use. It can effectively dust from spreading, keep your health away from dust. Suitable for electric hammer, electric pick, percussion drill, hand drill and so on. Features- Material: Silicone.- Color: White.- Size: 10X7. 27X7. 27CM.- The dust cover has high elasticity, easy expansion, durability, prolongs the service life.- It protect your health from dust when you are working with a hammer drill.- Can fit your electric drill very much, tight and sealed to put on the bit, not easy to to fall off.- Lightweight and simple structure design, does not increase the weight of the hand of the electric drill.- dust from falling into your eyes, clothing or floor, largely improve your working efficiency. Package Including 4 X Dust- proof Covers 16 X Rubber Rings