Activity & Learning Toys

Nettoppo Solar Magnetic Levitation Model Levitating Mendocino Motor Educational Model St41 very strong, attention, assembly of the fixture, hand-made. Speed: 1000 RPM 4 solar lithium battery 2 sets of painted wire 1 section 铷 ironing boron strong magnet this group have this function to automatically reverse the solar cell receiving coil,... Nettoppo Solar Magnetic Levitation Model Levitating Mendocino Motor Educational Model St41