Come and see our amazing products. This arm cell phone holder is large enough for any phone with a screen up to 6.7 inches and slim protective cases.Adjustable arm band large range with two fastening sizes supports any arm girth from 8" to 16" to protect and stabilize the device without slipping or constricting during your indoor or outdoor activities. Sports cell phone armband for running is worry-free.cell phone band for walking,The fitness arm band and exercise band is made from skin-friendly, breathable air mesh .The jogging arm phone holder for running phone armband is great for gym, high intensity workouts, extreme exercise, fitness, yoga, walking or outdoor activities such as running, cycling, hiking, fishing.Customized design is available. Pls confirm further with us if any query about packing info, inventory status and time schedule.