Add Motors, Lights and Switches. Stimulate young minds with creativity, imagination and science. Light up your 3D circuits with our unique power block. Great addition to any STEAM curriculum. Patented Technology you won't find in any other toy brick set. No Wires! Build circuits directly into your projects. Use your own imagination to create awesome structures Compatible with other toy brick sets Enhance and bring lights to your LEGO® sets. Contains over 58 parts including 10 LED's