C1 Rock Tumbler, Large 2.5LB Capacity with 4LB Rock Tumbler Grit and Polish Refill Media Kit

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KoolStone C1 Series – Trusted by Beginners, Backed by Experts. Start your rock tumbling journey with KoolStone, the brand trusted by thousands of families and hobbyists. The C1 Rock Tumbler is a classic model that balances reliable performance with all-in-one convenience. From the classic C1 to the Pro, Pro Max, and Pro Ultra, KoolStone continues to evolve with exclusive designs and upgraded performance for every rock enthusiast — ready to start your rock tumbling journey.
START A TUMBLING JOURNEY -- C1 Rock Tumbler turn rough rocks into polished gems, then you will be very excited to see the stones change with each cycle. That's a fun process of rock tumbling and a family little project for parent-child endeavor.
2.5LB LARGE CAPACITY & 75% QUIETER -- The updated KoolStone Rock Tumbler features a large 2.5LB barrel, perfect for polishing multiple stones in one batch. Holds more rocks than most beginner tumblers. The rubber barrel is 75% quieter than typical plastic barrels, making it ideal for home or classroom use.