Item Type: Mobile Phone Chest Strap Material: ABS Weight: Approx. 190g / 6.7oz Mobile Phone Rack Can Grip Range: 5.5-8.5cm / 2.2-3.3in Package List 1 x Mobile Phone Chest Strap 1 x Mobile Phone Bracket 1 x Screw 1 x J Shaped Seat 1Elastic and Adjustable: The chest harness belt is made of high quality materials and is not easy to deform. It is elastic, stretchable, freely adjustable in size and comfortable in shoulder strap. It is used to wear the sports camera mobile phone on the chest. 2Easy to Use: With a detachable bracket, you can place the smartphone horizontally and vertically, so you can freely adjust the angle according to the shooting environment. The buckle can be removed quickly and is very convenient. 3Free Your Hands: It supports mobile phone shooting with a width of 5.5cm8.5cm. With it, it will be easy to shoot immersive videos and photos from the perspective of chest. 4Widely Used: It is widely used for surfing, skiing, skateboarding, cycling and motorcycles. For skiing, mountain biking, cross country motorcycles, boating and any other sports you want to shoot from the perspective of below the helmet, this product will be the perfect choice. When skiing, you can focus on your arms, knees, ski poles and skis. When riding a bicycle or motorcycle, you can focus on your arms and handlebars 5Applicable Models: Not only for smart phones, but also for action camera. Compatible with for hero 5/4/4 session/3+/3/2/1, for Levin, for MUSON, for DJI Osmo Action, for SJCAM, for DBPOWER and other action cameras.