Beefunni Rock Tumbler Kit with Rough Gemstones, 4 Polishing Grits,Rock Polisher Kids Stem Toys Science Toys for 3-12 Year Old

Nature gently polishes the stone in water, sand or gravel until all the rough edges are smoothed out. Then the inner color and unique composition of the stone is revealed! Enjoy parent-child time together and get more nature science knowledge. It's faster than natural, but still takes time and patience. You can expect to have beautiful, polished stones in 2 to 4 weeks. Collect various rocks outdoors and use the polishing machine to grind them into attractive gems.

What You GetYou can get a complete OneDayFun rock tumbler set, which includes all the tools needed to polish the stone: a rock tumbler, 4 pcs polishing grits, various rough rocks, jewelry fastenings, a tube of glue and a detailed instruction manual. Easy To UseYou can set any stone grinding time from 1-7 days through the button, or you can stop and continue working with one button. After completing the set working time, the stone grinder stops automatically.

Rock Tumbler Kit with Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings, , Rock Polisher Kids Stem Toys Science Toys for 3-12 Year Old OneDayFun

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