The PRO AV BANANA plugs are available in pairs of Red & Black (positive & negative). The PRO AV BANANA plug provide a nice solid connection between speakers and amplifiers and work with 12 gauge to 16 gauge speaker cable. They provide a convenient connection and also are great when having to terminate in a tight space. A further reason to using banana plugs is that it also can prevent cross termination with any loose or stray wires that can blow your system. The gold plating on these plugs also provide corrosion resistance which prevents poor signal transfer and potential damage to your equipment. They have been designed to work best with any of the PRO AV speaker cable range but can be used on all brand speaker cables. In fact, using the right cables is the easiest way to instantly upgrade the sound quality of your system.