Glow-in-the-Dark Star and Shapes | Commercial Grade Phosphorescent Sticker (400 Circle and 4-pointed Star Set) This commercial grade vinyl has an ambient, phosphorescent glow. This is a special material with a metal backing that was originally engineered for construction sites and fire exits. With less than a minute charge, our vinyl will glow up to an hour and recharge indefinitely! JUST PEEL AND STICK! Use your imagination on how to install these stars. Make your own constellations, spell your name, create patterns. The possibilities are endless! Place above your bed or even above your bathtub! Tip: when you place them on your walls, it will really give you a "surrounded by stars" feel. What's more, when the lights are on, the stickers are white, not a weird green like other stickers. This will make your stars look great and unobtrusive in the day! Thank you for supporting small family business and handmade! (Located in California, USA)