Bull locking system for the head, interchangeable with the classic or decked models sold as options. Bull adjustable locking in accordance with different spear diameters. For more than a year it saf been tested by Pedro Carbonell, triple World Champion, who has not stopped boasting of the product. • http://titusbzvrm.blogdal.com/11709930/en-iyi-tarafı-beuchat-marlin-carbone-hd-speargun-115-open-head