The greater the super hero, the cooler the tech like Iron Man's arc reactor, the power behind the suit. Now you can build your very own model with this Arc Reactor build-and-play set. Featuring lights and sounds, it comes with seven color-changing modules, five different reactor covers and eight power modules so you can personalize the arc reactor to your own specifications. Show it off on the included display stand or affix it to your shirt with the enclosed magnet. Tony Stark would be so proud.