The first sticker I ever made- now back and glow in the dark! They measure roughly 4”x3” in and work great on water bottles, cars, laptops, anything really. Make sure to allow this sticker to sit out under some kind of light (UV or lamp light) to “charge” before you see the GITD effects. If I could figure out how to take a picture of a sticker glowing the dark- I would but for now, you’ll just have to trust me…