The National Geographic Rock Tumbler Deluxe Series is a science kit designed to teach kids about rocks and minerals. This educational rock tumbler, recommended for children aged 8 years and up, allows kids to explore the world of geology through hands-on experimentation. The deluxe series includes advanced features and larger dimensions, providing a fun and engaging learning experience for young explorers interested in science and nature. Made by National Geographic, this rock tumbler is a great way to spark curiosity and creativity in children. This is new! I opened the box for my photos. This was actually our grandsons, but never used. Thanks for looking! 😊