This set contains 141 parts and easy-to-follow, step-by-step building instructions and ideas for 40 different models. Your little builder can also use the parts to design and create from their own imagination! Packaged in a sturdy suitcase-style box with a handle for easy clean-up and portable storage.

• 141 Pieces

• BUILD & REBUILD: Instructions and ideas for 40 different models are included, like a car, a skyscraper, an airplane, a rowboat, and so much more!

• STEM LEARNING FUN: Building with K’NEX helps strengthen fine motor skills, manual dexterity, and spatial awareness; putting them on a path towards a greater understanding of STEM subjects.