6.35mm stereo plug to 3.5mm stereo jack - all metal 6.35mm stereo plug to 3.5mm stereo jack converts 6.35mm stereo jack to a 3.5mm stereo plug.Heavy duty, all metal, made with nickel-plated contacts.Heavy duty, all metal nickel-plated contacts connector 1: 6.35mm stereo plug connector 2: 3.5mm mono jack external length / height: 53.9mm body diameter: 11mm