Rock Tumbler for Kids Ages 10+ Years

Smooth rocks into polished stones with the rock tumbler. Uses the same process that has worked in oceans for millions of years. Securely fastens and does not leak. Clear lid cover suppresses noise. Entire process takes about 2 days. Recommended ages 10 years and up. Includes: 3 Bags of stones. Polishing powder. 2 Mounting rings.