Challenger floor buffer, electrical tape on the power cord, this is how I got it and unknown why it’s there. Oscillating Pad Machine with ¾ hp motor and 15in cleaning path. Challenger commercial floor buffers feature heavy-duty steel and metal construction. Designed as industrial workhorses, they typically utilize solid steel frames, steel transmissions/gearboxes, and chromed steel handles to handle rigorous, day-to-day commercial cleaning.