Theo Jansen Mini Strandbeest Model By Gakken Otona No Kagaku Vol. 30 Kit by Hwydo The Mini Strandbeest moves just by the wind and its own engineering genius. No electricity or batteries help power this beautiful creature and allows you to spend time exploring the design while you build it. It's an amazing creatures infused with the power of nature. It walks on the wind, by hand or by blowing against the propeller Build-it-yourself model kit No external power is needed A best gift for children and family