1、Our drill brush attachments are made of high quality nylon, no scratches, high chemical resistance and durability. 2、It is a reliable choice for long lasting cleaning tools, ideal for cleaning your bathroom, bathtubs, toilets, kitchen sinks, wheels and tires and other furniture. 3、Our cleaning brush shaft is an industry standard 1/4 inch steel quick release shaft, which can be firmly attached to your drill bit. 4、The long lasting shaft of this cleaning drill brush is strong enough to withstand heavy scrubbing. 5、The steel quick release shaft adopts industry standards, this electric drill brush can be installed in most cordless electric drill brands. 3 x Brush1 x Extension Rod Item Type: Drill Brushes Attachment SetMaterial: Nylon Medium Hard BristleInterface: 1/4 inApplication: Cleaning bathtub, cement slurry, interior decoration, bathroom surface, floor, ceramic tile, shower, toilet and carpet, etc.Installation Quantity of Scrubber Bit: 4 Pieces