KomeStone K1 Pro Professional Cutting-Edge Brushless Motor Advanced Rock Tumbler Polisher Kit, Extra Large 2.5Lb Barrel with 3-Speed Motor 9-Day Timer, 6 Belts, Rough Gemstones, 4 Polishing Grits etc.

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  • 2.5 LB EXTRA LARGE CAPACITY & QUIETER We use the 100% soft rubber barrels which can absorb the impact of the tumbling rocks and it s 75% quieter than that of other plastic drums, which likes the sound of a working dishwasher. With 2.5lbs extra large barrel, that means you can polish more rocks at once than 1 lb drum.
  • DIVE INTO THE FUN ROCK TUMBLING KomeStone rock tumbler is for turning rough raw rocks into smooth gemstones. You ll be excited to see the rocks change with each cycle a great lesson in patience for kids or inspiration for jewelry-making moms.
  • 2025 K1 PRO - PROFESSIONAL-GRADE TUMBLING INNOVATION Experience the future of rock tumbling with our K1 Pro's cutting-edge features a smart LCD screen with 9-day programmable timer, 3 precision speed settings, and pause resume function for ultimate control. The brushless motor delivers 20,000+ hours of quiet operation, while our military-grade thickened rubber barrel withstands years of continuous use. Create custom polishing recipes for museum-quality gemstones innovation that puts hobbyists in the professional league.
  • COMES WITH EVERYTHING YOU NEED Including the tumbler machine, the barrel, 1lb rough rocks, 6 belts, 4 polishing grits and ceramic filler media (As a gift in package) and other accessories, etc. Especially the full-color Instruction book, detailed and clear to follow, even a 4 year old kid knows how to use it independently.
  • SCIENCE-BACKED POLISHING FOR PRO-LEVEL RESULTS Achieve museum-quality shine with our 4-stage grit system (60 120 150 1200) and precision ceramic media. The leak-proof stainless steel lid ensures mess-free tumbling, while our exclusive guide unlocks pro techniques.

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