3.5 mm Phone Plug 2 3 4 5 Poles Mono Stereo TS TRS TRRS TRRRS Audio Plugs 14.0mm Length for Barriel Jack 4.5mm Diameter flange Wire Solder Type DIY Tin Plated Cover fits the Plug when solder wires When assembly, using glue to fix will be better. Not included here for the glue. ...