K'NEX Tinkertoy Set (100-pc.)
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Buy K'NEX Tinkertoy 100 Piece Essentials Value Set - Build a whole bunch with your favorite Tinkertoy parts! The Tinkertoy 100 piece Essentials Value Set includes spools, rods, flags, washers, end caps, and more! Building ideas for 13 models plus building tips! Your child can add these parts to another Tinkertoy building set, sold separately, or build anything they imagine!