Jofuni Professional Low Noise Rock Tumbler Machine, Rock Polishing Machine Kit
Jofuni Professional Low Noise Rock Tumbler Machine, Rock Polishing Machine Kit with Noise Reduction Cover for Kids, Adults & Rock Collector, 3-Speed Motor & 9-Day Timer, Geology Hobby Toy Gif 【Dual Mute Design】Our rock tumbler kit replaces the plastic drum with a rubber drum, reducing noise generation at its source. Coupled with our exclusive soundproof housing effectively minimizes noise transmission....