Rubie's Costume Co Superman Kryptonite Crystal Shard with Glow Sticks Set of 2 glow sticks, Each measures 11.5 x 2.5 x 2 inches. Officially licensed DC Comics accessory, only items shipped and sold directly by Amazon can be guaranteed to be authentic. Accessorize and light up your Superman costume. Look for Superman costumes and accessories in sizes and styles for the entire family. Create your own group of Superheroes or villains with Rubie's costumes including Superman, Batman, the Joker, and more