Tyco Electronics Raychem Solder Sleeve Terminator is used for shield (on coax cable) to ground termination. It features a heat shrinkable insulated transparent outer sleeve that provides inspectability, strain relief and insulation. It has a prefluxed SN63 solder preform to provide a controlled soldering process. Cable installed is soldered to ground path on your PC board. The SO63-3-9030 sleeve is made for a coax cable with a jacket of 4.3mm, with a shield diameter of 2.15mm and comes with a tin plated braid wire. Brand new. Retails for over $5 each.