Good choice for POV/VLOG The phone can be placed horizontally and vertically, The design with J-hook and long screw can make the phone rotate 90, the size of this strap is easily adjustable, fits even the largest winter jackets, fits wide body size range. Quick connection The smartphone chest strap mount with J-hook is easy to install and remove your phone, which can be removed 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 according to your adjusted angle, stable shooting, will not slip. Multi-use Suitable for mountain biking, skiing, snowboarding, motocross, paddle sports, cliff diving, wakeboarding and other action sports, not intended for running or high-intensity activities.