The Netsuke Cell Phone Charm is more than just a fancy decoration! The charm doubles as a UV ray detector. Great when you're out at the beach and you're wanting to monitor just how much sun you're really absorbing.
The Netsuke Cell Phone Charm is a glass egg-shaped ball that starts out as a light color, but gradually turns to purple as the charm gets more and more UV rays.
You can buy one (or two or three!) for $4.50 each.