• K\'nex 50 Model Building Set is a mix of micro and classic scale pieces!• Includes 417 K\'nex pieces.• Comes with step-by-step colour-coded instructions for 50 unique models! • A great starter kit! Create wow with the K\'nex 50 Model Building Set. This set is a great starter kit and includes 417 pieces to build anything you can imagine. The enclosed step-by-step colour-coded instructions get the builder started with 50 different unique builds. Builds vary in difficulty so you can build a patrol boat, dragon, school bus and more!  And when the builder is done, all the K\'nex rods and connectors can be stored in the re-usable plastic storage tub.  Additional details: Packaging size: 350mm x 220mm x 190mm Recommended age: 5-10