Thames And Kosmos Rock Tumbler

The Thames & Kosmos Rock Tumbler is a hands-on science kit that lets you transform rough stones into smooth, polished gems. Designed for curious kids, hobbyists, and budding geologists, it includes everything needed to explore the rock polishing process from start to finish. As the tumbler rotates, gritty stones are gradually shaped and refined through multiple stages, helping users learn about erosion, mineral hardness, and the natural processes that create beautiful polished rocks. With its easy-to-use design and engaging educational value, this kit makes a fun and rewarding STEM activity for home or classroom use. The Thames & Kosmos Rock Tumbler encourages patience, observation, and experimentation while delivering a satisfying final result: a collection of shiny, polished stones ready for display, crafting, or collecting.

Availability verified during our latest store check. If the item isn't on the shelf when we get there, the order is cancelled and you are refunded in full.