LEGO Chain Reactions + Crazy Contraptions, Both Klutz Books And Pieces  (Multicolor)

Set of both Klutz Lego books, complete with LEGO pieces so you can build all the cool things pictured in the books! Lego Chain Reactions + Lego Crazy Contraptions, Both Klutz Lego Books and Pieces Set of both Klutz LEGO kits: 2 books and LEGO pieces kits! | Design and build amazing moving machines - teach your bricks new tricks! | Chain Reaction Kit has 33 LEGO unique pieces, 6 plastic balls, string, paper ramps and other components | Crazy Contraptions Kit includes 105 LEGO bricks, gear & axle, all you need to create 16 unique projects | ...plus two crytal clear photo illustrated step-by-step guide books to show you how!