SBDs TechnoGymTreadmill Running Belt - 2PLY Fully Commercial Standard Belt  Requires Lube/Wax - Replacement Belt for Excite Run 500 & 700.New   ***Requires Wax or Silicone Oil*** ***PLEASE NOTE: Before installing your new belt. The treadmill deck must be replaced or flipped to an unused surface. Failure to do so will void the warranty & decrease the life of the belt. Replacement Belt for EXCITE RUN 500 & 700. (Standard 2 Ply) Fully Commercial Standard 2 Ply Premium Quality Running Belt To Continue using Standard 2 Ply Belt, please choose option " STANDARD 2 PLY"