Come and Check Our Branding Solutions.The cell phone armband running cell phone holder is large enough for smartphone with screen up to 6.5 inch with 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. It is great for gym, high intensity workouts, extreme exercise, fitness, yoga, walking or outdoor activities. Pls check inventory and detailed info before placing your orders.