MJR Tumblers' Model 12P Tumbler 12 Pound Capacity, 2/3 Gallon Rotary Commercial Duty Tumbler. Included in this Listing: One Base Unit. One 12 Pound Capacity Barrel. Instruction Manual for care and usage. Polishing/Tumbling Instructions for multiple applications. Two Year Warranty on parts and labor to cover defects in materials and craftsmanship.