Gitzo Series 5 Off Centre Ball Head L Mount Horn loaded technology increases acoustic output Horn loaded technology increases acoustic output while significantly reducing distortion Compared to the smaller versions GH3382QD has a larger ball and quick release adapter for strong and comfortable use with heavier equipment Friction control: By fine tuning the freedom of movement of the head friction control makes the head slower and more precise or faster and looser The ball lock now features a completely new pat pending system that combines two locking systems in one with the Quick Release System and the leveling spirit bubble