Ball head construction for ease of movement. As you grip the head, twist the main body and the ball head opens so you can move it into any normal ball head position. Twist the body in the opposite direction and the head is locked in place without additional movement. This eliminates the need to tighten a knob or lever before shooting the subject. There will be no play after setting, as in other ball head systems. You will have immediate access to 1/2 of a sphere for positioning your camera. You can even achieve an angle parallel to the ground.