ITEM NAME:4 Way Speaker Terminal Strip Block Push Release Connector, Audio Cable Clip Description: 4 Pin: red and black. Spring loaded to accept bare wires. Each has a rear solder point for integration into sound systems or other applications. Push in or snap in type, high quality plastic materail Installation size: 64.8mm x 19.7mm/2.55x0.76inch Between the screw hole middle size: 55mm/2.16inch Mounting screws are not included. Package Includes: 1 Piece speaker wire clip Connector.1 Piece speaker wire clip Connector. Spring loaded to accept bare wires. Push in or snap in type, high quality plastic materail. Each has a rear solder point for integration into sound systems or other applications.