Will only fit Harbor Freight brand tumblers "O" Ring Style Made From Buna Nitrile Has Greater Flexibility and Abrasion Resistance Than Natural Rubber These Belts Are Superior in Quality to Original Factory Rubber V Belts. Non-OEM replacement drive belts compatible with Harbor Freight 3lb single and double barrel tumblers. It will fit all years but will NOT fit Legol brand or other similar-looking tumblers.