Features: Replacement Parts: Attaches quickly and easily for added user convenience. Simple tools can help you be more safe. Universal Design: Suitable for electric hammer, electric pick, percussion drill, hand drill and so on. Function: Electric hammer dustproof cover can effectively stop dust diffusion and inhalation into the lungs. Easy to Use: This electric hammer dust cover adopts retractable design, which does not interfere with your work. Easy to install and clean, suitable for families and professionals. Multi Sizes: S is suitable for drills that is 150 mm while L is for 160 mm, two sizes of your choice to meet needs. Note: Drill dust cover collector only, the drills and others are not included, just for showing in the picture. Specification: Material: Silicone Color: White+Yellow Size(Approx.): S, L(L x W) S: 116x88 mm/4.57*3.46 inch, Suitable for drills that is 150 mm/5.91 inch L: 126x88 mm/4.96*3.46 inch, Suitable for drills that is 160 mm/6.30 inch Package included: 1 x Drill Dust Cover Collector 5 x Sealing Rings