Discover the KoolStone C1 Pro Brushless Rock Tumbler Kit Designed for serious hobbyists, the C1 Pro updates the classic design with a brushless motor, a reinforced barrel system, and intelligent speed control. The result is smoother operation, quicker polishing, and a polished finish that...

A complete, beginner-friendly rock tumbling kit The KoolStone C1 Rock Tumbler Kit brings a classic, reliable solution for turning rough stones into polished gems. With a 2.5lb capacity, you can tumble more rocks per cycle, making family projects and hobby sessions both satisfying and...