Baakyeek 6x Multi Color Glowing Wrist Band Nylon LED Armband Bracelet Strap for Running Walking Cycling in the Dark Night for Men Women Kids Length adjustable from 18~20 cm to fit your wrist Made of high transparent TPU optic fiber, lighting evenly and mildly 3 lighting modes: Constant on, strobe and Flashing Velcro closure, easy and convenient to wear and remove Rain resistant,washable and durable