LED Light Reflective Safety Vest and 2 LED Slap-On Wristbands. High Visibility Gear for Running, Cycling, Walking, Jogging and Biking for Men and Women ULTRA HIGH VISIBILITY: The Orange LED Vest with light transmission fiber optics provide 360 degree ultra-high visibility in dusk and night time activities. Two LED wristbands with 5 bright LED lights increase visibility during night sports - be seen by cars after dark when running, bicycling or just walking. This greatly increases the safety for you and your children in low light conditions. LIGHTWEIGHT & COMFORTABLE: Weighing only 4.8 oz you wont even realize you're wearing it. THREE MODES: 3 modes of operation at the touch of a button. Bright steady light and slow or fast flashing - gives greater visibility than safety vests or other reflective sports gear. HIGHLY ADJUSTABLE UNISEX SIZE: Our LED reflective vest fits both men and women. It's fully adjustable to ensure a snug fit so the vest stays in place for a full range of motion. Can be used anytime of year over a t-shirt or jacket. The ITL LED Slap-On Wristband has a dimension of 1 1/2" x 13 1/2". Can be worn on the wrist, ankle or arm by both adults and children. To apply on the biceps, please consider the dimension to see if it will fit. REPLACEABLE BATTERY: The vest has 4 x CR2032 3V and wristband has 2 x CR2016 3V lithium coin batteries.