CESS 6.35mm 1/4 Inch Stereo TRS Male Plug Connector - 6.35mm Stereo Plug (10 Pack) Professional Heavy-Duty cable-mount Jack Plug. 6.35mm. Heavy duty Stereo 6.35mm jack plug with plastic body and cable protector. Nickel plated for maximum signal transfer & durability.Material :Allory Compatible cable/wire size up to 6.4mm