Our phone VLOG/FPV kit is an adjustable design that attaches firmly to your chest and heart. Fits a wide range of shapes and sizes even over large jackets. It's made of high-quality nylon and ABS, breathable, lightweight material that makes it comfortable to wear. The smartphone chest strap mount with a J-hook buckle can be easily installed and removed by your phone, which can be disassembled in even one second. It is very convenient. The mobile phone chest strap mount has two non-slip rubber pads at the bottom and top of the phone holder. When you use the provided mini wrench to fasten the long screw on the J-hook, the phone clip will be in line with the angle you adjust, and the shooting will be stable and won't slip. It is suitable for mountain biking, skiing, snowboarding, motocross, paddle sports, wakeboarding, and other action sports. Besides, the TSV CN-26 harness mount head strap holder kit for POV/VLOG comes with an adjustable smartphone holder, so can fit all cellphone widths between 2.5 - 3.5 inches (including compatible with iPhone 12, 11 (Pro/ Max), 8 (Plus) XS XS-Pro XS and 90% of Android phones). It's a great choice for the first-person view of mobile phone shooting, fit all Go Pro Hero 9/8/7/6/5/4/3/2/1, Session, Fusion and DJI OSMO Action, Insta360 One R, AKASO, SJCAM, etc. Compatible Devices: Phones between 2.5 - 3.5 inches wide, and more action cameras Material: The chest strap mount is made from durable and non-corrosive nylon webbing Adjustable & Comfortable: Can easily be adjustable to fit wide-range body sizes Quick Release: This phone strap mount kit adopts a quick-release design, which can be disassembled in one second Stable Structure: There are two non-slip rubber pads at the bottom and top of the phone holder, stable shooting Usage Occasions: This chest strap mount suits skiing, fishing, biking, motorcycle, etc Package Included: 1 x Chest Strap Mount, 1 x J-Hook Buckle, 1 x Long screw, 1 x Phone holder, 1 x Adapter