This four piece power scrub brush kit is designed for use with most cordless drills. The Drill is NOT included. These drill brushes should cut your cleaning and scrubbing time in half or more compared to the rigorous effort involved in hand scrubbing. These power brushes also do a better job in maintaining your bathroom surfaces. This power scrubber drill brush kit is in the yellow medium stiffness. We have other power brush drill attachments in other stiffness's and colors that may better suit you cleaning needs, so please look at our drill brush power scrubber color chart in the listing images. Each power scrub brush in this kit has a different size and shape to make sure you always have the best drill brush for the job. Each drill brush power scrubber brush you purchase from us has a 90 day no questions asked money back guarantee. If you have any issues with your product please do not hesitate to contact us. This Drillbrush scrubber brush set is the power brush drill attachment that attaches to your cordless drill. See the Amazon reviews of all our Drillbrush power brush products. CORDLESS DRILL IS NOT INCLUDED. -This power scrubber drill brush kit contains medium stiffness nylon power brushes that will attach to your favorite cordless drill. We have other power brush drill attachments in other stiffness's and colors that may better suit you cleaning needs, so please look at our drill brush power scrubber brush color to application chart in the listing images if you need help picking the correct brushes for your applications. -4 different power scrub brush sizes and shapes of power brushes for cleaning around your bathroom surfaces. -Each Drillbrush brand power scrubber drill brush is well built and durable construction for use both indoors and outdoors. -This Drillbrush scrubber brush set is the power brush drill attachment that attaches to your cordless drill. These nylon bristles will not scratch and can be used on tubs, sinks, baseboards, fiberglass shower enclosures, shower door tracks, and porcelain to save yourself time and effort cleaning all kinds of different surfaces. Key Product Features. -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.