High Performance 2 Way Car Audio Power/Ground Distribution Block 1 X 0/2/4 Gauge In, 2 X 4/8 Gauge Out. Forged and Machined Brass Construction for Maximum Power Transfer Marine-grade Satin Chrome Finish for Superior Corrosion Resistance A High-temperature Polycarbonate Base and Cover Provide Insulation and Protection Branch the Main Power/Ground Wire to Connect Multiple Amplifiers -High Performance 2 Way Car Audio Power/Ground Distribution Block