These high grade GLS Audio Locking Series banana plugs are perfect for the audiophile do-it-yourselfer! They are the new "Generation 4" model. They will accept wire gauge size of 10G, 12G, 14G, 16G, and 18G. The 24k gold plating will ensure a corrosion free connection. The plugs are made out of the highest grade of H59-1 brass. This BL10 is an 10 pack. You will receive 5 Red Banana Plugs & 5 Black Banana Plugs.