Drillbrush was established in 2007, we have been designing and innovating brushes based on feedback and demand from our valued customers. Our brushes are professional quality and have been tested and approved by commercial cleaners, marinas, detail shops, and others industry ''hands on, daily user'' reviewers to be the absolute best solution for a wide variety of cleaning and scrubbing tasks. Always look for the ''Drillbrush Power Scrubber'' logo to insure you are buying an authentic Drillbrush from the leader in drill powered cleaning brushes. Drill NOT included•Drill powered pool brushes for cleaning pool walls, vinyl liners, steps and corners. Keep deck surfaces free of slippery algae and scum buildup. Rinse brushes after use to remove chlorine•Perfect for above ground or in ground pools and fixed or portable spas and hot tubs. Use together with a quality pool skimmer and pool vacuum for a complete pool maintenance kit•The swimming pool and Spa scrub brush kit features our most popular power brush: The Original Drillbrush Power Scrubber multi-purpose and corner scrub brush (in blue). The Original is perfect for rounded corners in hot tubs, spas, and pools. Use the round flat 4-inch and 5-inch brushes for larger surface areas on deck or liner•All brushes feature rugged steel, quarter-inch, quick-change shafts. Fits drills AND drivers•All Drillbrush Products have a 90 day no questions asked return window. 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 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