K'NEX | Typhoon Frenzy Roller Coaster | 2-in-1 Model Construction Set for Boys and Girls, 19 Foot Toy, 640 Piece Kids Building Set for Children Ages 9+ | Basic Fun 51438, Red. EASY TO BUILD 2-IN-1 MODEL: Discover non-stop action with this toy building set and download the exclusive instructions to build an incredible second model, the Tsunami Surge Coaster.
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