ZOOB is the moving; mind building modelling system. Its pieces snap; click & pop together in twenty different ways to form joints that rotate; limbs that extend and axles that spin for unlimited; open-ended building. ZOOB allows kids (and adults) to learn; explore and create using their imaginations. And if they can imagine it; ZOOB can help animate it . . . from dinosaurs to DNA strands; from animals to aliens. Each tube contains twenty ZOOB pieces and instructions for making fourteen different models.