These are 2mm threaded couplers that are soldered onto 2mm pushrods or 2mm music wire so that Kwik-Links or ball links may be used. These couplers are made of brass and are 1-1/4" long (3/4" of it is threaded). PACKAGE INCLUDES: Two brass threaded couplers REQUIRES: Soldering coupler to pushrod (stock# STAR2000 for solder). COMMENTS: Stock numbers for 2mm rods and links: 2mm pushrods DUBQ1662 2mm nylon kwik link DUBQ1660 2mm music wire K+SR4505 2mm swivel ball link DUBQ1769 3-5-95/eke UPDATED JMM 2/12/03