set2: 5 Pairs x Banana Plugs + 20x 2mm Banana plug(10Black+10Red) Screw connector fitting, no soldering needed Standard size fits most speakers For maintaining proper polarity,Secure, positive contact with binding posts,Corrosion resistant, 24K gold plated finish,Copper body construction and ferromanganese tips Perfect for connecting the satellite and center speakers to AV receivers Banana plugs make speaker installation a breeze. They are designed for use with amplifiers or speakers that use traditional binding posts. Not only is it easier to make the connection on the back of your amp, it is safer, with no chance of stray wire strands creating a short across contacts. The plug body is made of copper fitted with a ferromanganese tip. The entire plug is then plated with gold to help prevent corrosion and ensure smooth connections. 24k Gold Connectors Red/Black Gear Logos for Easy Channel Identification Open Screw Type Accepts 12 to 18 Gauge Speaker Wire Name: banana head audio plug Size: 20 x 2mm Aperture: Less than equal 5.0MM Uses: power amplifier, sound, banana head speaker line and other connections Advantages: no willow installation, easy to plug, metal shape design, easy to use, long life. Color: gold/black, red Material: copper/Zinc alloy size: Plug size: 4mm Package Contents: 5 Pairs x Banana Plugs 20x 2mm Banana plug(10Black+10Red)