Monster QuickLock™ connectors are the fastest, easiest way to install the right connector to your speaker cable for maximum performance and reliability. All varieties (Banana Plugs, Angled Gold Spades, FlexPin®) offer corrosion-resistant 24k gold contacts and easy installation. Speaker cable is made from copper wire that can corrode quickly, deteriorating cable performance and the overall sound of your audio system. To avoid this, always terminate your speaker wire with quality Monster® connectors.