• 4 mm banana connectors designed for amplifiers or speakers with traditional binding posts. • Open screw type compatible with bare wires, spade terminals, or other banana connectors. • Compatible with 12 to 18 AWG speaker wires. • Simple polarity identification through color-coded red and black rings. • Fast and secure installation without the need for soldering for a clean and tidy finish. • Package contents: 10 pieces in total, including 5 red connectors and 5 black connectors.