1. [360 rotation and detachable] The arm strap of the running mobile phone bracket has a 360 rotation design, which can help you check the screen from any angle. Unique U-shaped groove and removable design bring slide and buckle, safe and stable. Take off your mobile phone easily, answer the phone, take photos or play games.2. [Universal compatibility] The running armband is applicable to all mobile phones with 4.5-7.0 inch screens with mobile phone cases. It can be used by men/women with 8.5 "- 15" arms, and is applicable to everyone.3. [Comfortable fit] The armband of mobile phone is made of lightweight and breathable material, which is comfortable to carry all day. The high-quality soft anti-slip silicon makes the mobile phone firmly fixed on the wrist to prevent slipping when running, climbing, fishing or cycling. When the arm rotates hard, it will not fall out.4. [Applicable environment] Running/fitness/outdoor/cycling/yoga/rock climbing and other outdoor activities