Advwin Electric Rock Tumbler Kit with 5-Day Timer

The Rock Tumbler Polisher Kit transforms rough stones into gleaming treasures. It features a 1-5 day adjustable timer for four precise grit stages, making it perfect for hands-on learning. Equipped with a noise reduction cover and double waterproof design, it’s ideal for home use without disturbing others. Encourage kids to explore geology, develop patience, and ignite creativity by turning polished stones into DIY jewelry—combining fun with STEM education.

Features：

• Complete Rock Tumbler Polisher Kit: Includes a detachable soft rubber polishing bucket (child-safe), double-layer sealing cover (anti-leakage), noise reduction & sound insulation cover, and 4 packs of grinding stone powder (each 50g) for multi-stage polishing. Durable and safe for kids to use under adult supervision.
• 1-5 Days Adjustable Timer: Accurate digital timer for hands-off tumbling—customize 1-5 days per stage to match different stone hardness, perfectly supporting four-step grit polishing.
• Effective Noise Reduction: Equipped with a sound insulation cover that cuts noise in half, allowing quiet operation at home without disturbing neighbors or family.
• Double Waterproof Design: Reinforced double-layer sealing cover prevents water leakage during the polishing process, ensuring safe use of electricity.
• STEM Learning & Creativity Cultivation: Lets children experience the full stone polishing process (four stages) to develop patience and hands-on skills. Comes with DIY jewelry accessories (necklace & pendant) to turn polished stones into personalized ornaments.

Key Features:

Four-stage progressive polishing

Noise reduction & sound insulation

1-5 day adjustable timer

Double waterproof anti-leakage

Child-safe soft rubber polishing bucket

DIY jewelry making (necklace & pendant accessories)

Cultivates patience and hands-on ability

Specifications:

Colour: Black

Product Material: ABS + Soft Rubber (Polishing Bucket)

Timer: 1-5 Days (Adjustable)

Grinding Stages: 4 Stages (Step 1-4 Grit Powder)

Grinding Stone Powder: 4 Packs (Each Net Wt 1.76oz/50g)

Products include:

1 x Rock Tumbler Body

1 x Raw Stones

1 x Power Cord

1 x Measuring Cup (Random)

4 x Grinding Stone Powder (Step 1-4, 50g each)

1 x Detachable Soft Rubber Polishing Bucket

1 x Noise Reduction & Sound Insulation Cover

1 x Double-Layer Sealing Cover

1 x Necklace Accessories

1 x Pendant Accessories

1 x User Manual