The NGEH1 & NGEH2 heads are simply the most advanced ball heads in the world, incorporating the innovative hydrostatic locking system to produce an absolute rock-solid lock with the small turn of a knob. Using hydraulics instead of a mechanical approach produces a supertight lock with minimal amounts of knob turning. The effect produced is a smooth moving ball that when locked, essentially becomes a solid part with the head. This revolutionary head uses the latest materials for silky-smooth op