Square 2-wire / 1-channel flush mounted subwoofer/speaker box terminal binding post. This speaker wire post has push spring connectors for the positive and negative wire terminals. (1) 2-Wire Way Square Speaker Box Binding Post Push Spring Clip Terminal Connector. Gold plated connectors. Rear connections are solder type. Binding post terminal cup for speaker box. Red and Black bands indicate polarity on binding post, in addition (+) and (-) are clearly marked on the front and the rear. Size: 90 x 78mm (L x W). Net Weight: 60g. Gold plated connectors for enhanced conductivity Rear connections are solder type for secure wiring Features a binding post terminal cup for easy speaker box connection Compact size 35 x 3 / 90 x 78mm L x W Lightweight design with a net weight of 60g