POWER BLOX BUILDS PLUS SET

Build circuits directly into your projects!  Includes one power brick, and 72 bricks, which includes 6 LEDs.  These bricks are compatible with other brick building sets, so you can light up your creations to your heart's content.  Or, use the included instruction manual and build the three included projects.  Requires one 9v battery, not included.  For ages 8+.