Widely Used: 3 types of brushes can clean bathtubs, interior decoration, bathroom surfaces, floors, tiles, showers, toilets and carpets etc. The bristles will not scratch their surfaces. Quick Replacement: When you replace the drill bit cleaning brush attachment, just pull out our replacement shaft and easily install a new brush. Press the brush on the surface to be cleaned and start drilling. Easy to Use: Drill brush has a powerful cleaning function, it does not take time to install. Just connect them to the cordless drill, easily and effortlessly. These bristles will not scratch and can be used in bathtubs, sinks and shower rooms. Material and Size: Drill brush is made of plastic material, strong and durable. Three diameters of the brush: 2inch, 3.5inch and 4inch. Quality Assurance: We are providing you with the best quality drill brush. If for any reason you are dissatisfied with our products, pls let us know. We promise superior service and offer a 60 Day No-Questions-Asked Money-Back Guarantee.