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:<70dB
No-load Speed: 1020±10%Rpm
Timer: 9 day
Speed: 9 Step

Products Content:
1 x Professional Rock Tumbler Kit
3 x Belt
1 x Various Rocks
1 x User Manual