4 Different Sizes & Medium StiffnessMade of extremely durable high quality PP (polypropylene), each bristle is stiff enough. Therefore, brushes are wear-resistant and heat-resistant as well as with the good cleaning performance. The stainless steel shaft fits perfectly on any standard cordless screwdriver. Drill not included Great cleaning: You can use the drill brushes to remove stains in many places, such as bathtub, bathroom sink, kitchen sink, wall in kitchen, tiles, floor covering, carpet in living room and car wheel hubs. These nylon bristles won't scratch, it fits many objects and places. 4 Different Sizes: Drill brush attachment set is equipped with 4 different size brushes, 2 inch / 3.5 inch / 4 inch / 5 inch. You can choose the appropriate brush according to the items to be cleaned and wipe, e.g. B. stains, iron rust, moss. Compatibility: The brush heads are compatible with most cordless screwdrivers or drills. The connecting part of the drill brush attachment is a hex screw, you just need to insert the brush attachment into the drill, then just tighten it , Shower, Tub, Tile, Wall, Stovetop, Sink, Marble, Ceramic, Narrow Carpet, Studs, Car Tires, Car Seats and more. Save Time: Faster cleaning with 4 drill brush attachment sets. This 4 piece power scrub brush set is perfect for a variety of cleaning applications as it can clean almost anything. Specification: Brush Handle Type: Hex Head Screw Material: Plastic. Brush Wire Material: PP Size: 2 inch / 3.5 inch / 4 inch / 5 inch. Please note: 1. We recommend testing drill brushes on a small area first before using them all over . 2. Although brushes and scrubbers may get wet, please do not poke in water. To clean brushes and scrubs, remove them from the drill, rinse with warm water and allow to dry. 3. For safety, remember to wear safety goggles or eye protection when throwing cleaning products from the brush. Package Contents 4 x Cordless Screwdriver Brush Attachments (Note: The drill bit is not included).