Fiber Optic LED Hair Barrette
This is a cool LED hair barrette that lights up and can be intermixed with your hair. They use CR1220 batteries (like a smaller watch battery) and two batteries are included.
These fiber optic "hairs" are 12" in length but can be trimmed down to match your hair length.
They have multiple colors that are cycled through automatically. Just turn the switch on or off at the top of the barrette.
Buy several of these and mix them in with your hair for a really cool effect!