Cevinee trade; Adjustable Hands-free Running Cellphone Arm Belt Armband Arm Band Leg Band Clip-on Phone Single Sheath Case Cover Holder Consist of 1 elastic cellphone holder, 1 magic tape arm belt, 1 little handheld string. Cellphone holder: 12cm-18cm adjustable length, 6cm-12cm adjustable width. Fit for cellphones with 2.5 to 5.7-inch screen. Arm belt: 44.5cm long, 4,5cm wide. Fit for 11-13inch upper arm girth. Made of senior nylon. Breathable and durable. Different from other zippered cellphone arm bags. Fit for morning excise, running, jogging, gym and other outdoor activities. Hands free and easy to notice the cellphone ringing.