These Handlebeams fiberoptic light-up streamers for bicycles or scooter handlebars make biking at dark more safe and more fun! Two Handlebeams per package, with three AG13 batteries included with each. The batteries last about 30 hours, and can be replaced. Handlebeams turn on/off via a switch. Available in 3 light colors: Rainbow (cycles through all the colors of the rainbow), Pink and Blue. 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.  Two small barbs on the post keep the Handlebeams from falling out, but they can be easily pulled out when not in use. Completely lead-free and child safe! (CPSIA-compliant/certified).  Patent pending.