Uses -- This Pellking phone holder is perfect for skiing, fishing, cycling, motorcycling, and hands-free video commentary. We don't recommend using it for recording video while jumping and running; however, activating your phone's anti-shake function will improve the video quality. Excellent choice for POV/VLOG -- The phone can be positioned horizontally and vertically. The J-hook and long screw design allows for 90° phone rotation. The strap is easily adjustable to fit over even the bulkiest winter jackets, accommodating a wide range of body sizes. Stable Structure -- Two non-slip rubber pads are located at the top and bottom of the phone holder. Using the included mini-wrench to tighten the long screw on the J-hook mount ensures your phone stays at your adjusted angle for stable shooting and prevents slippage. Quick Connection -- The J-HOOK smartphone chest strap mount allows for easy installation and removal of your phone, which can be detached in seconds. It's incredibly convenient. We not only provide high-quality products but, more importantly, offer long-term after-sales support. Purchasing our products grants you access to comprehensive after-sales service, allowing you to shop with confidence and satisfaction.