Advwin Rock Tumbler with 9 Speed & 9-Day Timer

The Advwin Rock Tumbler Polisher Kit transforms rough stones into gleaming treasures.It offers nine speed levels and a 9-day timer for precise grit stages. Engineered for quiet operation, it’s ideal for home and classroom. Encourage Australian kids to explore geology, develop patience, and ignite a lifelong passion for STEM.

Features：

- Complete Rock Tumbler Polisher Kit: Includes 12V 1A adapter and quiet barrel for safe, durable polishing of gemstones and rocks.

- Adjustable 9 Speed Settings: From gentle to rapid polishing, tailor RPM (0-1020±10% Rpm) to each stone’s hardness.

- Up to 9-Day Timer: Accurate digital timer for hands-off tumbling—perfect for multi-step grit polishing.

- Whisper-Quiet Operation: The rock tumbler is low noise lets kids learn without distraction.

- STEM Learning & Patience Training: Cultivates curiosity, fine motor skills and perseverance through hands-on geology experiments.

- Fast spinning

- Low noise

- 9-day timer

- 9 speeds

- Cultivate children’s interests

Specifications:
Colour: Black
Product Material: ABS
Power: 8W
Noise: