Wildlife adventure fun-Self-propelled building blocks set

Various combinations! Take your building blocks and PK with your friends! See who goes the farthest~~ ● Understand the self-propelled principle of weight shifting through short stories and interesting experiments ● Rich parts, you can assemble 3 downhill models at the same time, observe and compare the movement of these models ● Learn basic scientific concepts such as fulcrum, center of gravity, balance, and friction. ●Various ways to play, unlimited fun: one-on-one animal competition or relay race using trigger principle, etc.