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User25771022
★★★★★
2026-11-06
The product arrived safely and works as expected.
National Geographic Rock Tumbler Starter Kit STEM Science Toy NGTUMBLER2 Ages 8+
$50.00
$65
30% OFF
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Product Details
Description
Specifications
Care Guide
National Geographic Rock Tumbler Starter Kit provides everything needed to transform rough rocks into polished gemstones. This STEM-focused educational toy includes a high-quality tumbling machine, an upgraded leak-proof chamber, 0.55 lbs of rough gemstones, and four bags of polishing grits. The set also comes with a rock strainer, five jewelry settings for creating custom accessories, and a detailed learning guide with instructions. Designed for ages 8 and up, it offers a hands-on way to explore geology and science while creating beautiful keepsakes.
Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.