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National Geographic, the leader in professional rock tumblers, is proud to introduce the Platinum Series Ultimate Rock Tumbler Kit, our quietest, most robust and feature-filled tumbler yet!

The Ultimate Rock Tumbler set is a revolution in rock tumbling, with a host of professional rock tumbler features designed to make tumbling fun, easy, and much quieter than before:

All-new, ultra-quiet design
Sleek, professional exterior styling
Large, water-tight, 2-lb. barrel assembly
Easy-set timer with day/hour settings
Variable tumbling speeds
Includes 1 lb. rough rocks, grit, strainer, patented GemFoam polisher & 5 jewelry settings
The Ultimate Rock Tumbler is our quietest model yet, and along with an all-new, sleek exterior, it's perfect for indoor tumbling, especially in smaller and shared spaces. The redesigned easy-set timer has settings for hours and days, and with three tumbling speeds, precise tumbling couldn't be easier.

The Ultimate Tumbler includes everything you need to start creating your own gorgeous gemstones right away. Along with 1 lb. of rough rocks, you get 4 bags of polishing grit, a newly-designed strainer and our patented GemFoam polisher that adds a stunning sheen to your finished gems. Also included are 5 jewelry settings to turn your gems into wearable treasures.

The Ultimate Tumbler STEM science kit from National Geographic is the perfect way to encourage a love of geology and inspire kids and adults alike with the Earth's natural beauty!

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