Sports Cameras First View Quick Release Chest Strap Double Chest Strap Accessories for DJI ACTION 3/4 Features: POV Perspective: Capture immersive shots hands-free, enhancing your adventures Easy Wear: Vest-style design for quick slip-on comfort Versatile Filming Angles: Easily switch between portrait and landscape with the rotating mechanism Broad Compatibility: Works with a wide range of phone models and applications Adjustable Fit: Sliding buckles adapt to various body types for a custom fit Soft and Comfortable: Elastic straps provide close, comfortable wear Specification: Material: Nylon + ABS Size: 31.7~52.6x33.2~42.3cm Color: Black Quantity: 1 Set Applicable Model: for DJI ACTION 3/4  Package: 1x Chest Strap, 1x Adaptive Base, 1x Long Screw, 1x Instruction Manual Note: Delivery does not include action camera and other accessories Transition: 1cm=10mm=0.39inch Since the size and weight are manually measured, due to different measurement methods, there may be a certain error between the weight and size of the product, but this error does not affect the normal use of the product, please confirm that you know and accept the error before purchasing Due to the difference between different monitors, the picture may not reflect the actual color of the item,please make sure you do not mind before ordering, Thank you!