Ideal for family bike rides or for commuter cyclists, and can be set to constant or day-safe flash, It has a curved grippy rubber back, and comes with two sets of attachment bands so it can be mounted horizontally or vertically in a variety of places on a bike like the handlebars or seat post, With a light housing that provides 180 of light visibility, the Radiant 50 is an ideal front indicator light to make riders seen and safe, day or night, Secure attachment, easy to detach for security purposes, Runs off of 3 AAA batteries (included), Black, 2, Front, Silicone Strap, 50 lumens. BICYCLE HEADLIGHT OR TAILLIGHT - This bike light is available in white or red LEDs, ideal for use as a front or rear indicator light HIGH VISIBILITY ON + DAY-SAFE FLASH MODES - Push button activates constant-on or attention-getting day-safe flash mode to keep you safe and visible on all your rides EASY, VERSATILE BIKE ATTACHMENT - Each light includes two sets of stretchy, durable attachment bands, and the light has a curved, grippy back so it can be mounted vertically or horizontally on a variety of locations on your bike 50 LUMEN WHITE LED + 15 LUMEN RED LED - Be seen and safe on all your rides with these bright LED bike indicator lights, powered by 3 AAA batteries (included) BUILT TO WITHSTAND THE ELEMENTS - These lights are weather-resistant and drop proof to 1 meter, so they can handle whatever Mother Nature dishes out on your ride WORRY-FREE GUARANTEE - all Nite Ize products are backed by our Worry-Free Guarantee