These Handlebeams fiber optic light-up streamers for bicycle or scooter handlebars make biking at night safer and extra fun! With 30 hours of replaceable battery life, the fun is endless as you cruise into the night. With the options of pink, blue, or rainbow, these are perfect for both girls and boys. Handlebeams fit into nearly all bike handlebar grips with holes on the ends. Adapters are included if necessary to replace handlebar end caps without holes. Barbs secure the lights in place so they don’t fall out, but they can be removed for daytime riding as well.