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. -Included in this kit are two versions of our most popular brush: The Original Drillbrush Power Scrubber. Featured are one Medium Green bristle, and one Red Stiff bristle model. -Use the Original Green Drillbrush as a kitchen helper brush. Great for cast iron and other pots and pans. Baked on food and solidified grease are no match for the rotary power of your cordless drill, paired with the efficiency of The Original Drillbrush Power Scrubber. -The Original Drillbrush Red Stiff brushes are made with stiff bristle fibers and are securely attached to the block. These brushes are durable and long lasting for heavy duty scrubbing. They work great on concrete, brick, fireplace, stone, sidewalks and driveways. -All 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.