UV Reactive Mask on a comfortable head sock for realistic movement. Just when you thought the dark couldn't get any scarier, masks start glowing in the dark! From Bumps in the night to Glowing Ghouls, UV black light Reactive Masks have you covered! Get your actor on...in the dark! This UV Green Glow Reactive mask will illuminate your costume! Its large protruding teeth and snake-like tongue give a great scare. Goes great with our UV Green Glow Reactive Skeleton Hands. Perfect for Halloween and Haunted Houses.