Smithsonian Rock Tumbler Bath & Body Kit includes materials for seven

Kit includes materials for seven crystal experiments

and most were apex predators

as we rocket to the stars

Designed with ultra-premium

Great for STEM-inspired storytelling and fostering curiosity about aquatic life

Smithsonian Rock Tumbler Bath & Body Kit includes materials for sevenTurn rough rocks into beautiful, polished stones that you can use to make charms, bracelets, keychains, and more. Begin by tumbling the included rocks in a barrel with water and grit, then repeat this cycle using progressively finer grits. In just weeks, the Smithsonian Rock Tumbler mimics the process that takes oceans thousands of years! Turn rough rocks into beautiful, polished stones! Includes accessories to make charms, bracelets, and keychains.