Power Bath Brush Electric Tile and Grout Brush Small Shower Track Brush Green and Black Drillbrush bristle curvature is ideal for sink and tub corners 2 inch diameter brush with 1 3/8" long Nylon Bristles reaches into crevices and shower door tracks All purpose medium stiffness brushes for bath, kitchen, and shop surfaces Smaller diameter brush allows access to tight and hard to reach areas such as around bathroom fixtures and corners All Drillbrush Products have a 90 day no questions asked Money back Guarantee. If you are not completely satisfied with our product we will issue a full refund or ship out a replacement at the buyer's request. Cordless Drill NOT included.