Awesome 250-piece kit - explore kinetic energy and launch balls up a twisting track!
This incredible 250-piece construction kit is easy to assemble and requires no batteries or wires. Simply follow the instructions in the 62-page manual to build the 38cm model, then turn the handle to watch it in motion! The mechanism fires balls up and around a loop, then back into the hopper to be launched again. Featuring two alternative builds, eight ping-pong style balls and full colour illustrations, this set is a sure-fire winner.