Replacement Rock Tumbler Barrel for National Geographic Tumblers

Many professional rock enthusiasts keep a dedicated barrel on hand to complete the final stage of polishing because it can be very difficult to make sure that no grit is left behind in your barrel when switching between shaping and polishing steps in the tumbling process. By having an extra barrel, you don't have to worry about rougher grit scuffing up your gemstones while you are trying to get that finished polish.

• 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
• HIGH-QUALITY EDUCATIONAL TOYS - We're proud to make the highest quality hands-on science toys, and all our products are backed by exceptional service. If your experience is less than stellar, let us know and we'll make things right!