Rotating Glass Windmill Solar 20.5cm 4 Blades Powered Crookes Radiometer Light Mill/Educational Teaching Study Tool/Office Home

Rotating Glass Windmill Solar 20.5cm 4 Blades Powered Crookes Radiometer Light Mill/Educational Teaching Study Tool/Office Home
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sku: 1005003198332741
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$19.43
Shipping from: China
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