WIDE APPLICATION - The banana connector with standard size fits most A/V receivers, amplifiers, surround sound systems, and banana wall plates. Works with multiple sizes of speaker wire (12 to 18 AWG) | FAST & EASY INSTALL - Solder-free Design speaker plug makes it easy to connect speaker wire to your amplifiers/receivers/speakers. Simple plug and play once the wires are terminated with banana plugs. It's especially convenient to install and move if you need to change your audio equipment. | HiFi STEREO SOUND - The plug is made of refined copper with gold-plated, which has strong conductivity and corrosion resistance and brings you lossless sound quality. The aluminum shell makes it double anti-interference, anti-oxidation, and wear-resistant, prolonging service life. | SECURE CONNECTION - With the design of the dual screw, there is no danger of the wire coming out. Conveniently color coded with two different colors for easy polarity identification. | PACKAGE CONTENT - 6 pairs/12 pieces 4mm banana plug (Red + Black). Our products provide an 18-month warranty and 24h friendly customer service. Please be assured that we'll try our best to help you if you have any problems with our products.