This Lego Mindstorms EV3 Touch Sensor 45507 is a perfect addition to any coding or STEM enthusiast's collection. The sensor is designed to detect physical touch and can be used to create interactive projects with the Mindstorms EV3 platform. The set includes one gray plastic sensor and is suitable for ages 8 and up. With this Lego set, you can delve into the world of coding and explore the endless possibilities of the Mindstorms platform. Whether you're a seasoned Lego builder or just starting out, this touch sensor is a great way to enhance your projects.