This Drillbrush attachment is made of durable high quality nylon bristles and is great for scrubbing and cleaning plastics, hot tubs, boat seats, boat carpets, and other boat cleaning applications. This brush is great for getting into tight corners and crevices that larger brushes may clean less effectively. The smaller diameter of the round 2 inch diameter scrub brush allows access to tight and hard to reach areas. The increased 1.5 inch bristle length of this brush allows the user to clean more narrow crevices or openings then the normal bristle length brushes. Cordless Drill Not Included. -This Drillbrush power scrubbing cleaning brush allows the user to save time and effort with the power of a cordless drill. Some of the common applications include cleaning of Plastics, Pool Lining, Pots, Pans, Hot Tubs, Boat Hull, Boat Seats, and Boat Carpet. -The smaller diameter of the round 2 inch diameter scrub brush allows access to tight and hard to reach areas such as on or around Boats, Pools, and Hot Tubs. The increased 1.5 inch bristle length of this brush allows the user to clean more narrow crevices or openings then the normal bristle length brushes. -This brush features a quarter inch quick change shaft. This shaft type allows for this Drillbrush to fit all cordless drills and impact drivers. -Please see our color chart for the full list of applications for each color brush. -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.