MSW USB rechargeable taillight. Includes micro USB cable for charging. - Tool-free installation - Aluminum body construction - 15 lumen output - Fits 19mm–48mm tubing - 28g weight

Excellent side visibility and 20 lumens of output make the Octodon a bright, reliable taillight to ensure you'll be seen on your nighttime rides. - 270-degree visibility - Flash and constant mode - Tool-free mounting bracket - Also works clipped to a bag/waistband - 2 AAA batteries included