Blue Marble
National Geographic Hobby rock tumbler kit
Hobby kit with a single rubber drum and programmable timer.
Price info
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Use and fit
Choose this Hobby version if you want a kit for a family’s first batches and prefer simple day-based settings. It comes with the starter supplies shown in the kit. Compare the exact Hobby variant with the Professional series before ordering a spare barrel or assuming a higher capacity.
Specifications
- Brand
- Blue Marble
- Listed model
- NGHOBBYTUMBLER
- Verified detail
- Hobby kit with a single rubber drum and programmable timer.
Questions before buying
What does the Hobby timer do for a first batch?
It lets you set a run duration and end the cycle automatically. Follow the guide for each stage and check the stones before changing grades.
Compare before you buy
The three-pound Professional kit adds speed control and a larger barrel class. National Geographic Professional 3 lb rock tumbler