Modern conga and bongo hardware is comprised of several metal parts.
The CROWN is the very top metal rim that has “V” or “U” shaped pieces that the tuning lugs attach to. This is an example of a crown:
The Flesh Hoop is the smaller ring that goes inside the skin. Our flesh hoops are made of 304 stainless steel and TiG welded for extra strength. This is a flesh hoop: