CM® oblong master link, dual rated, featuring an optimum design for sling construction, oblong master links have a greater capacity when compared with master rings of the same size because of their smaller width. The oval shape is also ideal for use with crane hooks, since the depth of a crane hook is normally greater than the width. Accepts both Herc-Alloy® 1000 and 800 chain and components. Durable orange powder coated finish. May be used for mechanical and welded sling assemblies. 100% proof tested. Design factor 4:1