The?K'Nex 10 Model Fun Building Set?is composed of colourful plastic rods and connectors that snap together with a simple click. These pieces can be combined together to create real working vehicles, moving structures and just about anything your child can imagine. Comes with an easy-to-follow instruction manual. .In the process, this educational engineering toy will put your child on a path towards a better understanding of?STEAM?(science, technology, engineer, arts and math) subjects. The K'NEX?10 Model Building Fun Set also fosters kid's growth by strengthening hand-eye coordination, fine motor skills, problem-solving skills and spatial awareness.