Kong Stainless Steel Carabiner Snap Hook Key-Lock AISI316 60mm Made of 316 Stainless Steel is considered the best in class stainless for use in marine environments. Simple gate opening allows clipping onto eyes, ropes, wire and struts. The carabiner also offers a keylock locking system, that eliminates any sealing tooth both on the body and on the gate of the connector. Therefore, there are no points to snag rope or webbing being the carabiner devoid of sharp edges. Compared to other less noble stainless steels, AISI 316 steel is used in aggressive environments, where there are many corrosive factors that are prolonged over time.