[Upgraded Drill Dust Cover]---- Our drill dust collector has been upgraded with a design and better dust-proof function, which is perfect for producing ash when drilling side walls and batteries. Suitable for 160mm drill bits. [Keep away from dust]----This dust cover can effectively prevent dust from spreading and being inhaled into the lungs. Protect from dust. This must be a worthy choice. [Rubber Material]---- 3.46 X 4.56 inches. Rubber material - non- and odorless. The expandable design 't interfere with your work. [Scope of application] ---- Suitable for electric hammers, percussion drills, electric dials, hand drills, etc. Colour:Photo Color Material:Silicone Package Contents: 1 set x drill bit dust collector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.