Superstructs Wacky Machines: * 175 durable plastic pieces including 16 large gears * Plans to build 7 truly wacky models * Step by step, easy to read plans * Plans illustrate how to create a crazy clock, geared-down ferris wheel, a thumping what-cha-ma-call-it, a drilling car and more * Comes in a heavy-duty canister that is perfect to store all the pieces * Named Creative Child Magazine"s Toy of the Year