CESS 1/4 Inch TS Audio Phono Tone Male Plug Cable Connector - 1/4" 6.35mm TS Guitar Cable Plug (jcx) (10 Pack) Professional Heavy-Duty cable-mount Jack Plug. 6.35mm (1/4 Inch) MONO. Heavy duty mono 6.35mm jack plug with metal body and plastic cable protector. Nickel plated for maximum signal transfer & durability.Material :Allory Compatible cable/wire size up to 6.5mm