Activity & Learning Toys

Geofray Solar Magnetic Levitation Model Levitating Mendocino Motor Educational Model St41 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, when running, the solar cell actively works, always the light in that... Geofray Solar Magnetic Levitation Model Levitating Mendocino Motor Educational Model St41