3-D modeling system with endless opportunities for building. Captures dynamic movement based on the way things move in nature instead of using traditional stacking connections. Pieces snap, click, and pop together to form joints that rotate, axles that spin, limbs that extend, and more. 5 styles of pieces connect in 20 different ways. Design and build creations to solve challenges, such as hitting targets and making balls bounce. Includes 255 ZOOB® pieces, 2 foam building pads, 4 wheels with tires, rubber ball, nylon string, 23 rubber bands, 14 challenge cards, and instructions. 300 pcs.