I have NEW rotary rock tumbler replacement barrels up for sale.  They fit various tumblers are are perfect for polishing rocks, fossils, and minerals. These barrels are made in China (like everything else!) and are of great quality. Whether you are a collector or simply enjoy lapidary materials, these 3-lb drums are a must to have and also a good idea to have a spare available.  They are ideal to use with rocks, fossils, and minerals, and will give them a polished finish. Of course, you have to add polish in order for them to shine!  These are perfect for anyone who wants to add a touch of elegance to their collection.