Glovion LED Light up Slap Wrap Bracelet LED Armband Orange Armband with Reflective Pattern and Red Leds Size:1.57 (width)X13.78(length) inch 3 Settings-quick flash, slow flash, Steady On, Batteries are Included and Replaceable, with extra cell battery for recycling use Slap it on your wrist, upper arm, or ankle, and you've got instant nighttime visibility Great Safety Product For Running-Walking-Or Jogging at night. Fits Comfortable On Both Children And Adults.