POLISHING BARREL – This rock tumbler barrel allows you to polish like a pro. We recommend having a dedicated barrel that is only used for the final step in the polishing process to avoid leaving any remnants of rougher grits that might scratch your gemstones and diminish the final polish.
•REPLACEMENT PART – Barrel is compatible with the National Geographic Professional Rock Tumbler and Hobby Series Tumbler as well as the Discover with Dr. Cool Professional Rock Tumbler and Hobby Series Tumbler
•QUIET AND CONVENIENT – Constructed of durable rubber and with a leak-proof lid, this barrel is designed to be low-noise and easy to use
•EXPAND YOUR ROCK COLLECTION – Use this barrel to polish rocks, gemstones, petrified wood, sea glass, and much more
•100% SATISFACTION GUARANTEE – Discover with Dr. Cool is committed to ensuring customers are completely satisfied with their purchase