The 5 inch Wool Polishing Ball attaches to your drill using a common 1/4 inch hex shank. It will turn your drill into a serious polishing tool. It cleans and polishes between spokes, around wheel lips, into the barrel of the wheel, and into concave spots where regular polishing pads cannot. You can also use the Wool Polish Ball to polish metal, aluminum, paint, fiberglass, gel coats, and composites. Use the Wool Polish Ball to remove moderate to severe paint defects from hard-to-reach areas. The rugged 360 degree design allows you to easily polish and correct areas that a normal pad cannot. The 100% twisted wool gives the Wool Polish Ball impressive polishing power and rugged construction. A durable rubber core and a carbon steel hex shaft keep mean the Wool Polish Ball is built to last. It is also extremely easy-to-use. Simply attach to a normal drill and polish away!