ACEVER LED High Visibility Flashing Safety Armband Cycling Jogging Walking Reflective LED Armband (Green) Each pack includes an arm band and a shoe-shape keychain. Brand new product at high quality With 3 models of illumination--Steady On, fast flash and normal flash With various colors available. Red,orange,yellow,blue,green (five kinds color for you chose) Extendable Size: 18-20cm