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

About This Product :

• What You GetYou can get a complete 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. Any questions you don”t understand can also be answered in the detailed study guide booklet, which fully documents how to turn a rough stone into a beautifully polished gem.
• Educational Toys & Science ToysThis is a great stem toys for kids to build their favorite gems by themselves. Rock polisher can improve children”s interest in geography and science, as well as exercise children”s patience. A rock tumbler science toy is the perfect birthday and Christmas gift for boys and girls.
• Durable Grinding Rock PolisherOur products use high-quality motors, which are durable and can work continuously for a long time. In addition, the leak-proof rubber barrel equipped with the grinder has a good seal and is quieter than other products.
• Satisfied ServiceIf you have any dissatisfaction or questions about this rock kit, please feel free to contact us, we will reply you and solve the problem within 24 hours. Trust me, this stone grinder is a great learning toys for 3-12 year old kids.

Details :

• Age Range (Description): Kid
• Educational Objective: play, Game