The 4911A-12-2 is a retractable sheath banana plug Patch Cord accepts 18AWG PVC insulated wire. It has nickel-plated brass banana plug, nickel-plated beryllium copper banana spring, stainless steel compression spring and polypropylene tip. The retractable sheath end allows interfacing to either standard sheathed or non-sheath style banana 4mm jacks. Plug and housing are moulded directly to the cable in an integral one piece design and the wire is double crimped for a long lasting connection. The multi-leaf banana spring material is beryllium copper, nickel-plated for extended insertion life cycle and low contact resistance. Test leads can mate to a broad assortment of Pomona probes, alligators and spade lugs.