This is a high quality Action Camera to Cell Phone Adapter.  The adapter is standard GoPro and fits nicely into the FenceClip.  This is our recommended Action Camera to Cell Phone Solution.  This adapter has a screw that secures the clip on your phone.  The range of the adapter is 2.25 to 3.75 inches.
 
Its great to to have the option of using your cell phone to film.  I've gotten some of my best video with my cell phone.  The continuously improving Cameras, the easy Streaming, and access to your Social Media are all good reasons to be able to secure your phone on a fence and capture game action.  Use the Safety Tether.