Building with K’NEX is easier than ever, with the Beginner 40 Model Building Set! Featuring all new easy-build parts that allow children ages 5 and up to have a frustration-free building experience. The new parts – a barbell shaped rod that easily sandwiches between 2 connectors, and a flat panel piece that provides structural support – were specifically designed to address the needs of younger builders, who can easily build 2 flat shapes and then connect them together into a 3-D creation! Plus, newly designed wheels pop right on – they’ll be on the go in no time! 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. Building with K’NEX supports a child’s developmental growth and puts them on a path towards a better understanding of STEM subjects. Give your child the gift of creativity with K’NEX and think outside the blocks! WARNING: CHOKING HAZARD - Small parts. Not suitable for children under 3 years. Recommended for ages 5+.