This four-pad sander rental utilizes random orbit technology, enabling it to sand floors without difficulty or damage. Changing sandpaper on the U-Sand floor sander is easy and does not require any tools. The U-Sand floor sander is one machine that does the work of three (a drum sander, edger, and buffer). The U-Sand sander's attached wheels allow for easy maneuvering and transporting. It also features U-Sand technology by Cherry Hill Mfg. which makes it possible to sand across the grain. Unlike traditional sanders, there are no worries of gouges or damage to floors. Anyone can use this lightweight random orbital floor sander. Gap Power supplies all your sandpaper for floor sanders. We even have buffing pads. Sometimes called a wood sander or deck sander.