Product Description [Purpose] The phone holder is suitable for skiing, fishing, cycling, motorcycles, and hands-free review videos. We do not recommend using jumping and running videos, as the shooting effect is better when you enable the anti shake function on your phone. A great choice for POV/VLOG: The phone can be placed horizontally and vertically, and the design of the J-shaped hook and long adapter can rotate the phone 90 . The size of the strap can be easily adjusted, even suitable for the largest winter jacket, suitable for various body types. [ Stable Structure ] There are two anti slip rubber pads at the bottom and top of the phone holder; When you use the included mini wrench to connect the long adapter to the J-hook bracket, the phone clip will adjust according to the angle you adjusted, [ Quick Release ] The smartphone chest strap holder with a J-hook can be easily installed and used to remove your phone in just one second. Very comfortable.