Buckle Clip Base Mount and Surface J-Hook Buckle: Allows you to attach your GoPro camera to a Chest Harness, Adhesive Mount or Helmet Mount; Easy to install and remove J-Hook Design for Additional Filming Angles: The J-Hook design positions the camera further from the mounting point, enabling additional filming angles 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 Screw Length: Approximately 2.1 inches (5.3 cm) Material: ABS + aluminum alloy Color: Black Package Contents: 8 x Camera Accessories Note: Light reflection and different displays may cause slight color variation between the image and the actual item. Measurement may vary by +/- 1-3 cm.