The Knight Series Wrist Bag free your hands while exercising without holding a smartphone or personal items Wristband comes with two straps, the shorter one is around 7.5 inches and the longer one is for those less than 11 inches; Main case alongside touch screen and compatible with 3.5 - 5 inches phones HD and Sensitive Touch Screen enables phone usage while exerciseing Reflective material around the Frame will reflect when encounter the car light Material: Lycra Special Notice: Can not directly activate the unlock interface by the home button for iPhone 8/7 Plus, please activate iPhone?€?s "AssistiveTouch" before unlocking screen