Description: brand new and high quality Features: This J-Hook Buckle can be used with flat surfaces,especially helmet and chest belt Its design means the camera is further away from its mounting point, therefore allowing additional angles to be achieved when filming.. Camera by holding your Hero Series and making your usage convenient. Easy operation, easy to install and remove for: for HD, Hero 4, Hero 3+, Hero3, Hero 2, Hero for HD, for GoPro Camera Specifications: Size:4.5x3x4cm/1.77x1.18x1.57inch(approx.) Color:Black Material:Plastic Quantity:1Pc Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Include: 1 x J Hook Buckle (other accessories demo in the picture is not included.)