Includes 2 drill brush attachments for quickly cleaning carpets Car detailing brushes with ¼ inch diameter shaft works with most standard drills 2 different sized cleaning heads for added versatility to tackle any job; the 4 inch diameter carpet brush is perfect for large flat areas while the 1.8 inch diameter brush is best for small areas or spots that need special attention Medium-duty nylon bristles loosen and lift dirt and debris from interior carpeted surfaces like footwells, floor mats, and liners Also great for cleaning automotive rubber floor mats, truck bed liner, brake pedals and more When using the brushes the drill should always be on the lowest setting. Test first on a well-lit, inconspicuous spot to see the effect of the brush prior to cleaning the desired area. Always read and follow the drill manufacture's operating manual.