Reinforced nylon, quick removal dust skirt. Gray non-marking 5" wheels and power cord protect the floor. Innovative "wiper" style switch keeps the motor contacts clean. Smooth and rugged steel planetary gear system. Chrome plated steel housing, motor cover, and handle tube provide maximum durability. Transparent molded plug has an internal light that serves as a power indicator. Grip face pad driver supplied with the machine. Die cast aluminum alloy frame.