This is a set of 3 brand new belts for the popular Dan & Darci Rock Tumbler/Polisher. This sale is for the belts only, no tumbler included, just three replacement drive belts. These belts will ONLY fit the Dan & Darci units, it will NOT fit other look-a-like versions. These Belts Are Superior in Quality to Original Factory Belts. They Are an "O" Ring Style Made From Buna Nitrile, It Has Greater Flexibility and Abrasion Resistance Than Natural Rubber. *These Belts have a 15 Year Shelf Life!* They Stay Pliable Down To -20 F And Withstand Temperatures Above 250F.