National Geographic Rock Tumbler Machine - Amazing Gemstone Polishing Machine with Authentic Grit, Stones and Crystals | STEM Educational Rock Polisher Hobby Kit Gifts for 8+ Year Old Boys and Girls

EXTRAORDINARY POLISHED GEMSTONES - Become a pro rock tumbler and bring an amazing shine to everyday rocks with this National Geographic Kids Kit! Our jewellery making kit includes 5 fastenings so kids can make all of their friends and family stunning handmade keepsakes!

TUMBLING MADE EASY - Each stone polishing machine kit comes with everything they need to create beautifully polished gemstones! These polishing machines are packed with 9 varieties of included gems and 4 grades of grit to kickstart your kids' precious rock collection.

FASCINATING STEM HOBBY - Invite them to take up a hobby in the world of geology with our rock polisher machine! Each educational science kits for kids age 8+ includes a full-colour learning guide with easy-to-follow instructions to help young scientists learn all about gemstones.

PERFECT GIFT - This no-fuss stone tumbler polisher machine is ideal for the budding scientist in your life. Smart features like the auto shutoff timer and noise-reducing leak-proof barrel make them convenient and cool presents for 8+ year olds!

NAT GEO SCIENCE KITS - Explore the expansive range of high quality STEM science kits from National Geographic, each containing everything necessary for your budding scientist's experiments. 27% of the licensing proceeds of each purchase give back to the fantastic National Geographic Society.