Manfrotto 468MGRC2 Hydrostatic Ball Head with RC2 Rapid Connect System (3157N) Ball-locking system with RC2 Rapid Connect Plate; can leave permanently attached to camera Hydraulics create super-tight lock from a minimal turn of the locking knob Lightweight, but supports heavy camera loads up to 22 pounds Independent pan and tilt locks with a 360-degree pan and +90 to -90 degree tilt Oversized ball-locking knob for easy control even when using gloves