Kryptonite Sheet Square Foot
A single square foot of our Kryptonite sheet.
Use a white, blue, purple, or ultraviolet LED to write on this material, and watch it slowly fade over the next hour or more.
Draw pictures, write messages, play games, the glow is the longest lasting of any material known to man.
With a purple or blue laser, you can write on it from several feet away.
Use a camera flash or strobe light to make shadow images.
Or, cut out letters from it to form glow in the dark signs, such as EXIT signs, or arrows to indicate directions, or make stairs visible after the lights go out.
Comes with a self-stick coating on the back.