Take your Air Toobz creations further with the Air Toobz Expansion Pack! Add extra tubes, connectors, and foam balls to build longer, more creative pathways and explore even more ways to move air and objects through any designs. Children can create more complex structures while developing spatial reasoning, problem-solving, creativity, and STEM skills. The transparent tubes and colourful foam balls also make it easy to watch the action as children experiment, test ideas, and see what works. Includes 6 transparent 12-inch tubes, 6 transparent orange corner tubes, 12 easy-fit connectors, and 10 colourful EVA foam balls.