Petzl Am'D Ball Lock Carabiner D-shaped locking carabiner for attaching devices to a harness The Am'D asymmetrical aluminum carabiner has a D shape best suited for connecting a belay system or for holding equipment. Its ergonomics and Keylock system facilitate manipulations, even when wearing gloves. The Am'D carabiner is available in three locking system versions: manual SCREW-LOCK system, or automatic BALL-LOCK and TWIST-LOCK systems. Features: Great functionality, thanks to its capacity and dimensions: - efficient shape for use on either end of the carabiner (belay systems) - carabiner can hold a large quantity of equipment Good handling and ergonomics: - D shape for good handling - shape designed for gripping with gloves on - Keylock system to avoid any involuntary snagging of the carabiner Available in three locking systems, each for different situations: - SCREW-LOCK: occasional use, dirty environments - BALL-LOCK: frequent use with practical automatic locking; secure use with triple-action opening - TWIST-LOCK: specific use when quick opening is key (e.g. at the end of a lanyard) and when connecting a GRIGRI to the harness