YARBO of Germany, make high end audio connectors and cables. Professional product for modern audio, video systems and transmission system. See PRICES for Yarbo Jack connectors. Yarbo 1/4 inch Stereo headphone Plug, gold platedHigh quality 1/4 inch,(6.3mm) high copper content, gold plated stereo headphone plug. Will receive cables up to 8mm in dia. Easy to solder plug.