National Geographic Rock Tumbler Kit - 1.36 kg Extra Large Capacity Barrel with 3-Speed Motor & 9-Day Timer, Includes Rocks for Tumbling & Rock Polisher Grit, Stone Polisher for Adults & Kids
Blue Marble
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9,9
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2
A1 Professional Rock Tumbler Kit, 4LB Extra-Large Barrel with Cutting-Edge Brushless Motor, Adjustable Speed & Timer, Durable Metal Base for Adults & Rock Collectors – Includes Full Accessories
AtoRock
19% off
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9,8
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3
Professional Rock Tumbler Kit – 4LB Large Capacity Barrel with Brushless Motor & Heavy Metal Base, Adjustable Speed & 9-Day Timer, Includes All Accessories, Rock Polisher for Adults & Collectors
KomeStone
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9,7
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4
Professional Rock Tumbler Machine, Rocks Polishing Machine Kit with Noise Reduction Cover for Kids, Adults & Rock Collector, 3-Speed Motor & 9-Day Timer, Geology Hobby Toy Gift (2026 Upgrade)
Jofuni
17% off
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9,6
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5
StemRock Upgraded Rock Tumbler Kit, Complete Rock Polisher Machine, Durable 1 Lb Barrel Great STEM Science Gift Adult, 9-Day Timer & 3-Speed Motor, Include Rocks, Grits and DIY Tools, GS03-N-B02
StemRock
14% off
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9,6
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6
MJR Tumblers 12 LB Rock Tumbler Awarded Best High End, Most Versatile Run 4 Dif Barrel Combinations
MJR Tumblers
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9,5
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Tumble-Bee Rock Tumbler - Large Tumbler for Adults & Kids - Rotary Machine for Stone, Rock, Metal and Sea Glass - Polishing Machine for Professionals & Hobbyists - Model TB-14, 1X4LB Barrel
Tumble-Bee
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9,5
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8
National Geographic Professional Rock Tumbler Kit- Stone Polisher for Kids and Adults, Complete Kit with Durable Tumbler, Rocks, Grit, and GemFoam Polisher, A Great STEM Hobby
Blue Marble
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9,3
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9
AtoRock Professional Rock Tumbler Kit, 22LB Extra-Large Barrel with Cutting-Edge Brushless Motor, Real-Time Motor Output & Runtime Display - Heavy Duty Metal Base for Adults & Rock Collectors
AtoRock
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9,2
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ZHIXUMM Professional Rock Tumbler Kit, Electric Rock Tumbler Vibratory Bowl,8inch Vibratory Rock Tumbler Bowl Tumbling Polishing Machine, Convenient Operation
ZHIXUMM
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9,2
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MJR Tumblers 2/3 Gallon Rock Tumbler Barrel - Barrel for Tumbling, Rock Polisher Tool, 12 lb
CREATE YOUR OWN GEMSTONES: This tumbler barrel makes it even easier to turn rough rocks into beautiful gems. The professionally designed rock polish learns during the polishing process, making the polishing process more fun.
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NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit - Includes Rough Gemstones, 4-Stage Silicon Carbide Polishing Grit, Jewellery Fastenings & Learning Guide - STEM Science Kit for Geology Enthusiasts
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MJR Tumblers 2.75 Gallon Rock Tumbler Barrel - Barrel for Tumbling, Rock Polisher Tool, 40 lb
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NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Durable Noise-Reduced Barrel, Rocks, Grit & New GemFoam for a Shiny Finish, Cool Toys, Great STEM Hobby Kit
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KomeStone K1 Pro Quiet Rock Tumbler Kit for Kids & Adults | Reliable 2.5Lb Hobby Rotary Rock Polisher, Long-Life Brushless Motor & Memory, Thick Rubber Barrel, Complete Kit For All Ages
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MJR Tumblers 1/2 Gallon Rock Tumbler Barrel - Barrel for Tumbling, Rock Polisher Tool, 10 lb
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Leegol Electric Rock Tumbler 18 Lbs Vibratory Tumbler Bowl
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KoolStone C1 Pro Max Brushless Rock Tumbler Kit - Extra Large 3LB Capacity, Up to 6X More Noise Cancelling, Ultra Quiet Rotary Polisher with Full Accessories, Ideal for Adults Kids
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Thumler's Tumbler Rock Polisher
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Which.One Highlight
National Geographic Rock Tumbler Kit - 1.36 kg Extra Large Capacity Barrel with 3-Speed Motor & 9-Day Timer, Includes Rocks for Tumbling & Rock Polisher Grit, Stone Polisher for Adults & Kids
