Gitzo Center Ball Head Series 3 Quick Release D Gitzo’s Center Ball Heads are extremely balanced & versatile heads, engineered & designed focusing on ultimate smoothness & precision of the movement & locking. GH3382QD is the large sized head ideal for Series 2 & 3 Mountaineer tripods, & matches well with most other Gitzo tripods Series 2 & above. Compared to the smaller versions, GH3382QD has a larger ball & quick release adapter, for strong & comfortable use with heavier equipment. It is supplied with the standard, Arca-Swiss compatible plate (GS5370D), but is also compatible with all of Gitzo's D profile plates & fits most Arca-Swiss style plates from other brands.