Through-Hole LED Class Set (Powered) 40 Students - Paper Circuits Level 3Through Hole LED Class Set (Powered) 40 Students Designed for classroom and group learning, the Chibitronics Through Hole LED Class Set (Powered) introduces students to advanced circuit concepts through paper crafting and hands on exploration. Custom cut LED legs make prototyping and polarity identification easy. The Through Hole LED Class Set contains enough supplies for up to 40 students. This class set includes: 1 x Compartmented Storage Box 240 x