Efanr Black Adjustable Sport Armband Exercise Workout Case Cover with Key Holder Slot for Samsung Galaxy S3 S4 S5 S III IV V i9300 i9500 i9600, Ideal for Gym, Sports Fitness, Running, Jogging Design specifically for Samsung Galaxy S3 S4 S5. It can keep your Samsung Galaxy S3 S4 S5 safe when doing exercise. Comfortable tape to fix your Samsung Galaxy S3 S4 S5, easy and convenient for carrying It can protect against shake and damage,and provides full protection for your Samsung Galaxy S3 S4 S5. Adjustable band to fit all sizes of arms.