Drillbrush was established in 2007, we have been designing and innovating our product line 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. -This indoor/outdoor kit includes two of our popular 2-inch diameter, power scrubbers. Use these brushes for small area, or hard-to-reach scrubbing and cleaning. Included are a 2-inch diameter Stiff Red power brush, and a 2-inch Medium Yellow round power scrubber. -Use the 2-inch Stiff Red brush for outdoors, patio, garage, and deck: clean siding, gutters, brick, stone, concrete pools, artificial ponds, bird baths, and garden statuary. Get into crevices and carved stone details to restore statues and headstones. -The 2-inch Medium Yellow power brush is the perfect tool to clean and maintain shower door, and tub enclosure, glass doors and tracks. Scrub and sanitize your baby’s bathtub. Great for all around bathroom cleaning tasks. Power scrub bathtub, shower, tile, and porcelain. Cut through soap scum, hard water stains, mineral deposits, calcium build-up, and rust discoloration. -Both brushes utilize a steel shaft and have a quarter inch quick change connection for rapid changing of components. This shaft makes our brushes compatible with both cordless drills AND drivers. -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.