1/4" LTYPE MONO PLUG 6.SM MHIGH REFINED COPPER CONTACT PIN UNIQUE DESIGN WITH PLASTIC CHUCK RELIEF CONTACT RESISTANCE:< l0M OHM DINSULATION RESISTANCE: >200M OHM me Membrane, displays classical music, and vocals better. Made of good quality material of metal and plastic. Sturdy with good performance and long service life. Easy to install, no complicated steps and no complicated tools required. Direct replacement of old one or bad one.