Koolstone

C1 Rock Tumbler Kit - Large 2.5LB Rotary Rock Tumbler for Adults & Hobbyists, Quiet Rubber Barrel, Adjustable Timer & Speed, Complete Gem Polishing Kit with Memory Function

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30-day return window

Description

  • Turn Ordinary Rocks Into Beautiful Polished Gemstones At Home – 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.
  • Large 2.5LB Capacity With Up To 75% Noise Reduction – 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.
  • Faster Polishing Time & Better Polishing Results – 3-speed controls (providing more granular tumbling results), a 9-day timer (with automatic shutoff feature and memory function), all displayed on clear screen, letting you easily hone your settings for precise tumbling each time.
  • Everything You Need For Tumbling Is Here – C1 Rock Tumbler has everything you need to create polished gemstones. Rock tumbler, 2.5LB capacity rubber barrel, 1LB for 9 different types of rough gemstones, 3 belts and 4 polishing grits and ceramic contact media, sifter, jewelry fastenings, and illustrated tutorial guide. For longer use and better results, pair it with KoolStone’s 4LB Professional Polishing Grit (sold separately).
  • 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.
  • Official KoolStone Warranty – ? ???? ???????? & ??-??? ????-???? ?????. Your purchase is protected by KoolStone’s official ?-???? ???????? and a ??-??? ?????-???? ?????????. Shop with confidence — we’re here to support your tumbling journey.
  • Easy Maintenance – The durable drive belt is designed to be replaceable, making maintenance simple and extending the life of your rock tumbler.
Technical Specifications
Manufacturer
KoolStone
Model
KS20220422
Color
Brush Edition: C1
Size
Large
Height
14.5 cm
Length
28.5 cm
Width
22.9 cm
Weight
6.26 kg
Shipping & Delivery

Your order is shipped from the USA and delivered to your door in South Africa in 10–20 working days. All items are fully tracked.

Returns & Exchanges

We offer a 30-day return window. If something isn't right, contact our support team and we'll make it right.