Storz hose couplings are comprised of interlocking hooks and flanges, and are sometimes referred to as sexless couplings because rather than having male and female ends that connect by screw threads, Storz connectors have identical ends that can be joined to any other end of the same size.
This adapter has a Storz connecter on one end by female hose thread on the other. The 30 Degree Elbow with swivel rocker lug is made of hard anodyzed aluminum.