Customize your own Brick Badge with this 1x8 Technic brick featuring LEDs inside each hole that slowly cycle between red, blue, and green. The included battery is housed on the back alongside a convenient on/off switch, and the badge attaches to your shirt magnetically. Build onto the top and bottom with your favorite engraved bricks or any compatible LEGO bricks to create a personalized, illuminated badge that’s uniquely yours.