Rube Goldberg Kit It's called chaos, but kids don't need a kit to create that, do they? And it actually is used to create really fun controlled "perpetual motion" Rube Goldberg-type devices. You (your kids will never displace you once they see this kit) assemble a frame of your choice and adorn it with sets of chutes, slides, funnels, catch baskets, trampolines... You name it. The new Chaos motor driven chain lifts a ball to the top of your construction and off it goes through whatever course(s) you have set up. It is really educational physics, and we guarantee hours of creative fun with this top quality, attractively packaged kit. The tower has a max height of 78" and a whopping 602 pieces! It also includes an educational CD ROM. Everything you need (except batteries) is included. Ages 7 & up.