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STEM Science
DIY building block four-speed gearbox simulation model with battery box can be assembled
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Model: SNP71 Weight: 243g Size: 136 * 63.5 * 78mm Wheel size: 49.5 * 20mm
$29.90
DIY building block four-speed gearbox simulation model with battery box can be assembled
Model: SNP71 Weight: 243g Size: 136 * 63.5 * 78mm Wheel size: 49.5 * 20mm Shipping list:as picture show
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DIY Automatic Water Dispenser School Experiment Manual Model Science Education Toy SNP68
STEM ScienceDIY Automatic Water Dispenser School Experiment Manual Model Science Education Toy SNP68
Working principle:
When the water cup touches the micro switch, the circuit is switched on, and the pump works
When the water cup leaves the micro switch, the circuit is disconnected and the pump stops workingSKU: SNP68
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