Features: The 6.3mm to 3.5mm headphone plug converter is solid brass and has a longer life than plastic connectors with metal spray paint. The 24K gold-plated connector is corrosion-resistant, ensuring minimal signal loss. The stereo plug adapter is lightly doped with gear grinding technology, providing a 360 degree grip on the tire surfaces for easy insertion and removal. Stereo input/output 1/8 inch to 1/4 inch TRS adapter. 6.35 to 3.5 stereo plug adapter with 6.35mm stereo plug For electric guitar/piano, speakers, stereo system, home theater equipment, or receiver with 6.35mm stereo plug. Specifications: Material: Metal Headphone Adapter 3.5mm Female to 6.35mm Male Length:appox 5.5cm/2.16in Package Includes: 1PC 3.5mm Female to 6.35mm Male Headphone Adapter note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.