Be Safe! Be Seen! With this ultra bright LED SpokeLit!  It fits nice and snug within the spokes of any bike's wheel spokes.  Once you slide it in place just squeeze once for solid light and twice for blinking light.  SpokeLits are about 5" across and take on the same shape as bike spoke reflectors.  Each packaged separately and ready to go with 2 CR-2016 batteries which are replacable and last over 12 luminous hours.  Perfect for those fun, summer night bike rides.