9pig® Big Size 4 Blades Rotating Glass Windmill Sunshine Solar Powered Crookes Radiometer Light Mill Radiation/Educational Science Teaching Tool (colorless) (colorless)

Description

Brand: 9pig (HK brand) .  9pig is a HONGKONG most famous brand which only produce high quality Products and luxury Business gift/home decorations .   His product don't have possibility of low quality . Trust the brand reputation . Fortunes the windmill/Sunshine Solar powered Rotating Windmill/Wedding Birthday Present Creative Business Gift/Desk Home Decoration   Windmill by the solar radiation, resulting in power energy, so that windmill rotate,  the stronger the light,  the faster the windmill rotating .   net weight of small one:  95g  Net weight of big one:  115g weight include packing of small one : 190g weight include packing of big one :  210g   Diameter of big one : 8cm,  height : 20cm