Rock Tumbler, 3 lb Rock Polishing Machine, Rocks Tumbling Kit with 4-Speed Adjustment, 19 Day Timer, PC Sound Reduction Cover & TPU Drum, Direct...

Stable Polishing: This stone tumbler machine employs a belt-free direct-drive motor for smooth, stable polishing. Low-voltage technology reduces belt-related maintenance, while 35dB operation ensures quiet, uninterrupted crafting from raw stones to polished gems Noise Reduction: The rock polishing kit combines a PC noise cover, TPU drum, and belt-free direct-drive motor for triple sound reduction. This design minimizes vibration and friction, extends the tumbler's longevity, and maintains smooth, quiet operation during polishing Adjustable Settings: Our rock polisher includes a 19 day timer and 4 adjustable speeds from 75 to 120 RPM, handling different materials and stages. Overload and power-loss memory functions resume interrupted cycles, and constant-speed design delivers even polishing throughout Efficient Tumbler: Equipped with a 3 lb/1.36 kg drum, this stone polishing kit accommodates more stones in a single batch, enhancing work efficiency