“This Harmony RGZ clip-in legend set is used for identification of relay.””It is supplied with blank plate for custom engraving to support any desired marking and can be easily assemble with relay socket via clip-in mounting.””It is compatible with plug-in relay RPM, RXM, RUM.””Blank legend allows customization of any markings as required.””It can be matched with any relay socket from RPM, RXM, RUM ranges.”