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projectile motion
A huge K'NEX set
than the battery-powered K'NEX motors
Each coaster car features red and blue lights that blink when in motion
using gears
K'NEX Classics Beginner set 125pc 10-model ispack projectile motionGet creative with this K'NEX Beginner Builds Building Set! Great for encouraging independent play as children either build their own creations or use the easy step by step manual to create a range of cool models! With 125 brightly coloured pieces to choose from and 10 different 3D building ideas, children will love to experiment and create every configuration they can imagine. Choose from an array of interactive models from a Monster Truck, Rally