Available in packs of 1 to 4 our great LED Safety lights come in blue,green,red and white colours and have 5 Ultra super bright LEDs per one which shine brighter and last longer than others With exceptional build quality they are robust and waterproof make them a great night light for dog collars, or clip on lights for runners, upto 100hrs per set of batteries Included in each pack is a hook and loop armband which the light can slip over or clip on to provide an armband for runners that can be applied in seconds and stay safely attached With three great modes, constantly on, slow flash and fast flashing they are really each to use and have a large button to change between the settings. Strong and durable and designed to last