Reentel’s newest product division, Tumble-Bee, offers a line of rotary tumblers that are well-suited for tumbling rocks, glass and polishing jewelry. Tumble-Bee has taken the classic performance of existing rock tumblers and improved the design and technology to bring it into the 21st century. As a result, Tumble-Bee tumblers are the most modernized, safest tumblers available today.