Our highly visible and light weight safety flasher light is great for bicyclers and joggers and walkers, Wiith its 5 super bright LEDs you are sure to be noticed during the dark nights, You can select from 7 different flashing functions-steady or fast flashing or slow flashing or middle to end flashing or end to middle flashing or strobe and double blink, The kit contains a 120 degree rotable bicycle attachment and a arm band, Requires two (2) AAA batteries that are not included, Dimensions are 2 and one quarter inches by one and one- half inches by one inch, SKU: CEFL26RY