Dual high-quality speaker banana plugs - black this dual banana plug was specifically designed to accommodate 2 binding posts at the same time.Primarily used to insure a tighter connection of a speaker wire to the binding post in the back of the speaker or in the back of the audio receiver.The plug is 24k gold-plated and has a side cable entry and will accommodate a 12~24 awg wire.Speaker wire posts are color coded, for easier recognition.24k gold plated assures highest signal transfer & resists corrosion can accept 24 to 12 awg speaker wires overall dimensions: 59mm l x 25mm w black non-conductive plastic barrel color coded to indicate polarity provides greater contact and pressure to speaker cable