"The RAM Tough-Tap uses a 1"" lag bolt to mount a camera, motion sensor or even a phone into trees, fence posts and tree stands. The Tough-Tap consists of a short arm, a B-size ball with a 1"" lag bolt at one end and a B-size ball with 1/4""-20 threads at the other. Whether you're broadcasting hunts and fishing outings or live producing videos from shooting competitions, RAM Mounts secures the cameras and provides unique angles."