GH2781TQR is a 'simplified' center ball head specifically conceived for traveling. This new head combines lightweight and compactness with many innovative features. First, the ball is the revolutionary Gitzo patent pending 'Bubble Ball' PTFE treated, mounted on PTFE bushings. Apart from the dramatic weight reduction achieved, this beautiful sphere guarantees an exceptionally smooth operation. The locking system is the Gitzo unique and patent pending Spring Assisted Double Lock (SADL) that combines two locking systems in one, maximizing both locking power and operation smoothness. Also, with quick release adapter.