The two front brushes rotate in opposite directions grabbing the debris directly in front of the sweeper while the brush roller on the bottom picks up all the fine particles, all the debris is then deposited into the large easy to empty 13.2 gallon container. Stand up storage design for easy storage. Comes with lubricant spray. Fiberglass roller brush. Side rollers that make sweeping along walls an ease. 4 year warranty on brushes. 2 year overall warranty.