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¡À10% Rpm) to each stone¡¯s hardness.
Up to 9-Day Timer: Accurate digital timer for hands-off tumbling¡ªperfect 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.
