SKMEI LED Flashing Safety Armband Safety Light for Running, Cycling or Walking At Night &ndash; 3 Flashing Modes- Long Time Battery Life High visibility, suitable for a range of sports at night, such as running, cycling ,walking or walking the dog, cars could easier to see you on road. LED flashing armbands make you more impressive at parties or concerts. MAGIC TAPE can be adjusted to suit your sizeup to 13 inchesas a armband for your comfort. Durable nylon band wrapped LED core, long time battery life and can replace the CR2032 batteries. 3 flashing modes: bright steady light, slow flash and fast flashto ensure the wearer will be noticed even in the darkest areas.