Buckle Clip Base Mount and Surface J-Hook Buckle: Allow you to attach your for GoPro camera to a Chest Harness, Adhesive Mount or Helmet Mount; Easy operation, easy to install and remove<br> J-Hook Design for Additional Filming Angles: Its J-Hook design means the camera is further away from its mounting point, therefore allowing additional angles to be achieved when filming<br> Compatibility: Suitable for GoPro Hero Session/5 Hero 3 3+ 4 5 SJ4000 5000 6000 DBPOWER AKASO VicTsing APEMAN WiMiUS Rollei QUMOX Lightdow Campark Sony Sports DV and More<br> Screw Length: About 2.1 inches/5.3 centimeters<br> Material: ABS+ aluminum alloy<br> colour:black<br> Package Contents :<br> 8 * Camera Accessories<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.