完売
Stirlingkit
Solar Power Powered Toy Mini PumpJack Car Diffuser
- 通常価格
- $4.39
- セールスプライス
- $4.39
- 通常価格
-
- 単価
- per
These motors run on light alone. Place one on a sunny windowsill and it starts to spin, with the rotor floating on magnets so there's almost no friction to slow it down.
They're quiet, need no batteries and make a calm, fascinating desk piece for anyone interested in science or renewable energy.