Crunch Labs AIR BALL Build Box by Mark Rober is a STEM toy / build kit designed for kids aged 8 and up. This build kit invites children to engage in hands-on engineering activities as they build and experiment with air-powered machines. With a focus on creativity and problem-solving, this educational toy is perfect for inspiring young minds to explore the world of engineering and technology. This sealed box contains all the new and necessary components for a fun and educational building experience. Ships fast USPS