The Photo Clam Pro Gold II Easy PQR Ballhead is a professional quality tripod head that features an extremely strong ball-locking for a very high 77 lb. load capacity. Compare the Photo Clam line to any professional grade camera support system on the market and you will find excellent performance and quality at value prices. Photo Clam also has styling features that set you apart from the crowd.The Pro Gold II Easy PQR Ballhead utilizes an Arca-style clamp with lever release, and features an adjustable clamp plate that is compatible with a myriad of other manufacturers. This professional ballhead provides high stability, fine adjustments, and vibration free operation.With a separate base and ball panning mechanism, the ball can stay locked during panning allowing the camera to stay level, so you won"t need to carry a separate leveling base to take accurate panoramic images. Weighing only 1 lb, the PQR supports loads up to 77 pounds, which also makes it a great choice for secure portability. So if you are looking for a stable and easy to level head, look no further.360 degree panning and 90 degree tilt with separate pan base and ball locks to ensure level panning when shooting panoramic images.Weighs only 1 pound including clamp. Supports up to 77 pounds. Thanks to an adjustable quick release clamp, the PQR is compatible with Kirk, Arcatech, RRS, Novaflex, Arca-Swiss and other quick release plates. It also features a lever operation for easy release. Utilizes 3 spirit levels for easy and convenient leveling. Black satin finish. Fits standard tripod mounts 3/8" - 16 UNC