EASY TO INSTALL & COST EFFECTIVE; DETACHABLE WIRE CONNECTORS SPEEDS UP INSTALLATION TIME; CONNECTS UP TO 6 PAIRS OF SPEAKERS OR VOLUME CONTROLS WITH 1 AMP OR RECEIVER; SIMPLIFIES MULTI-ROOM STEREO SYSTEM & INFRARED INSTALLATION; USED WITH UP TO 6 OR MORE POWERMATCH OR IMPEDANCE-MATCHING VOLUME CONTROLS; IDEAL TO PARALLEL INPUTS TO AMPLIFIER OUTPUT; GROUNDS INDEPENDENT GROUNDS FOR SAFE CONNECTION OF ALL CONVENTIONAL AMPLIFIERS; DETACHABLE SCREW TERMINALS CAPABLE OF 12 AWG–24 AWG WIRE; DIM: 6.5"L X 2.125"W X 1.25"H; WHITE