Toro 16.64 Inch OEM Poly V-Belt. Toro poly V-belt is a single, endless belt with longitudinal V-shaped ribs that mate consistently with the V-grooves in the sheaves. It combines the convenience of a thin, one-piece flat belt with the strong gripping traction of multiple V-belts. V-belts are manufactured using the highest quality materials and are rigorously tested to assure they perform under the toughest operating conditions. Will-fit belts might look similar or claim similar functionality but only genuine Toro parts ensure your mower performs as it's intended by providing the perfect fit and maximum performance.