This slap-wrap reflective wristband easily snaps onto your wrist, arm or ankle. It is only accessible in one size and can readily be used by everyone. They are designed in a way that it will not hurt your skin. It is reflective up to 200 feet. This product is made of high visibility PVC reflective material to avoid danger in dark areas. Kids and even adults make use of these reflective wristbands to instantly increase pedestrian visibility.