KiwiCo Tinker Crate Glowing Pendulum STEM Engineering Toys Brand New; Open Box; Never Used; Complete Set; Great Condition Ages 9+ “Explore Chaotic Motion w/ a Double Pendulum & UV Light” (Please See Pictures For More Details) Perfect for all you Young Educational STEM Kits Fans Out There!!! Discover the wonder of the KiwiCo Tinker Crate Glowing Pendulum STEM Engineering Toys, perfect for kids who love to explore and experiment with science and technology. This kit features a stunning Glowing Pendulum that will surely captivate young minds and inspire creativity. Made by KiwiCo, a trusted brand in the world of crafts and DIY projects, this kit is a must-have for any young engineer or crafter. With everything needed to build the Glowing Pendulum, this kit is perfect for hours of fun and learning. Designed for kids aged 12 and above, this kit is a great way to encourage STEM education and entrepreneurship. So why wait?