GoPro Large Tube Mount place the saddle shaped plate

place the saddle shaped plate on the rail then wrap the metal clamp strap around the rail and plate

Durable Materials: Weatherproof zippers & canvas backing

If you have an extended backdoor for your case the Ribcage and lens will fit inside so you can shoot underwater

This wall charger allows you to charge the Hero3 and Hero3+ aftermarket batteries

GoPro Large Tube Mount place the saddle shaped plateAttach your GoPro camera to roll bars, railings, posts, or tubes between 1. 4" and 2. 5" in diameter with the GoPro Large Tube Mount. Once secured, the camera base can be rotated 360 for optimal camera positioning for composition. The included vertical mounting buckle integrates with GoPro's mounting buckle system for quickly attaching and removing your camera from mounts on the fly.