Good choice for POV/VLOG. The phone can be placed horizontally and vertically. The J-hook and long screw design allows the phone to rotate 90 degrees, the size of this strap is easily adjustable and fits even over the largest winter jackets, suitable for a variety of body sizes. Quick release. The smartphone chest strap mount with J-HOOK can be easily installed and removed your phone, which can be disassembled in just one second. It is very convenient. Stable structure. There are two non-slip rubber pads at the bottom and top of the phone holder; When you use the included mini wrench to attach the long screw to the J-hook mount, the mobile phone clamp will be in accordance with your adjusted angle, stable shooting, will not slip. Versatile. Suitable for mountain biking, skiing, snowboarding, motocross, paddle sports, cliff diving, wakeboarding and other action sports, not intended for running or high-intensity activities.