Build 50 unique models, including 25 motorized creations, with the K'NEX Power & Play Motorised Building Set. This educational toy encourages the development of fine motor skills, dexterity, spatial awareness, and problem-solving. It's ideal for children aged 7 and up, offering hands-on, inquiry-based learning opportunities in STEM subjects. The set includes 529 rods and connectors and a step-by-step manual to bring your imagination to life.