... *Light up for 60hrs, battery replaceable. *3 modes flash way. LED Safety Flare Stick for Bicycle ST-0101: MaterialABS + TPU ... + led lightssize34 *9*4cmLED colorred, blue, green, orange, yellowPower by6 ... x AG13, light up fo 60hours, replaceable.flash modesfast blink, slow blink, stay on lightpacking1piece ...