Sunpak 620-CPG Compact Pistol Grip Head for Tripod Trigger control for the fastest, surest way to set up your camera and track the action Chassis bulls eye bubble level for precise leveling Padded quick-release plate with 1/4-20 screw The Sunpak Compact Pistol Grip Ball Head has the ability to allow you to adjust the tension of the Compact Pistol Grip Ball Head Base by rotating the Tension Adjust Ring Limited lifetime warranty