These are rubbery seal stickers. They are all glow in the dark. They were released during the Pokemon Black & White era.
Included a pic with a ruler to give you an idea of the size. Also spread out all the potential stickers you could get when you order. I will try my best to not include doubles.
People are going nuts over Pokemon stickers here. These kind of things will become harder and harder to find. Snag a bunch on the cheap while you can!
****Please closely inspect photos before making a purchase. Thanks!****