1、PREMIUM QUALITY MATERIAL: The six leaf banana plug is made of high quality brass, which is sturdy and durable to ensure long term use. Can be screwed, can be welded. 2、CHROME PLATED BRASS BLACK CARBON FIBER: The speaker banana plugs feature chrome plated brass on the connector, corrosion resistant, carbon fiber shell to ensure clear sound quality. 3、EASY INSTALLATION: The speaker connector is easy to install, and the split screw makes the wire connection secure. Standard size press fit technology fits most speakers. 4、COMPATIBLE AND SUPERIOR QUALITY: Accepts speaker wires up to 5mm diameter. Make safe, positive contact with the binding posts. Wider base minimizes short circuits for maximum signal transmission. 5、WIDE APPLICATION: Banana plugs are used to connect speaker wires and provide clear sound for home theaters, AV receivers, amplifiers, surround sound systems, banana wall panels and other sound systems.