8 years & up. Power up your imagination and put your building skills to the test! The E-Blox Power Blox Builds Plus features over 70 parts to build 3D circuits that light up with the power block. No wires are necessary! Use the building bricks to construct endless possibilities of illuminating structures. Power Blox stimulates young minds with creativity, imagination, and science through hands-on, STEAM-based play. Compatible with other similar toy bricks. Requires 1 9V battery (not included).