If the belt in your tumble dryer drum needs replacing, restore smooth performance with this replacement Poly-vee Drive Belt. The Poly-V Belt, or Ribbed Belt as it is also known, resembles a flat belt - but with V-shaped ribs along the inside surface for increased friction force between the pulley and the belt. This replacement belt could help get your drum back to rotating at its best, and esure your tumble dryer offers you the performance you have come to expect.