6.35mm stereo plug to 6.35mm mono jack adapter 6.35mm stereo plug to 6.35mm mono jack converts 6.35mm mono plug to a 6.35mm stereo plug.The adapter is assambled of black molded plastic with nickel-plated contacts.Black molded plastic construction nickel-plated contacts connector 1: 6.35mm stereo plug connector 2: 6.35mm mono jack external length / height: 69.8mm body diameter: 12mm