CTK Wind Powered DIY Walking Walker Mini Strandbeest Assembly Model Kids Robot Toy 1. Can walk on the wind by hand or by blowing against the propeller.It is a miniature version of Theo Jansen's remarkable creation.The mini strandbeest moves just by the wind and its own engineering genius. 2. Build-it-yourself model kit of Wind Powered Walking Robot. It will make a turn if there is water and keep still for strong wind. 3. Have fun while you built it.It will be a best gift for your friends and children. 4. Age Range: Above 7 years old. It's an amazing creatures infused with the power of nature. 5. Size:11cm*17cm*20cm(4.3in * 6.7in * 7.9in).Package: 1 set * Strandbeest Toy.