Lortone 33B, 3-1.5, 45C Replacement Drive Belts 5 Pack These Belts Are Superior in Quality to Original Factory Rubber V Belts. "O" Ring Style Made From Buna Nitrile Has Greater Flexibility and Abrasion Resistance Than Natural Rubber These Belts have a 15 Year Shelf Life! They Stay Pliable Down To -20 F