They're nowhere near as complex as most building toys. And that's entirely the point. Cosmos Magnetic Wooden Blocks use a patented system of neodymium magnets that pop up to snap together much like real-world locking mechanisms. They're available in five sets — shuttle, rocket, satellite, lander, and planet — with a grand total of 28 wooden pieces and 58 connection points among them. An ideal gift for aspiring explorers and space-obsessed big kids alike.