Features 1、It has a wide range of applications. It connects radio frequency coaxial cables to radio equipment and instruments and ground transmit systems under vibration and harsh environmental conditions. 2、Stackable welding free screw fixation, simple operation, fast connection, reliable contact, no complicated connection process. 3、High quality materials, high reliability, strong vibration resistance, excellent mechanical and electrical performance. 4、The shell is made of ABS insulating material, which is not easy to burn after being exposed to fire, ensuring the stability of the work. 5、4mm banana plugs, 4mm banana plug female head can be inserted, and conventional 4mm plug females can be inserted and used. Specification Item Type: Banana Plug Material: ABS + Red Copper Color: Red, Black Model: U33 Total Length: Approx.52mm / 2.05in Plug Length: Approx.18mm / 0.71in Plug Width: Approx.4mm / 0.16in Jack Diameter: Approx.4mm / 0.16in Application: Electricity numerical test Package List 2 x Banana Plug