3 Way Design: 0 gauge in, 4 gauge out, high performance power distributor, offers complete protection for your car's audio system. Premium Material 3 Way Design: 0 gauge in, 4 gauge out, high performance power distributor, offers complete protection for your car's audio system. Premium Material: All of distribution blocks are made of high conductivity zinc alloy to maximize the security of your connections. Wiring Hole: 1 x 0GA IN 3 x 4GA OUT Fitment: Universal Package List: 1 x Power Distribution Block Zinc Alloy Ground Distributor Block 3 Way , 1x 0 Gauge In 3x 4 Gauge Out For Car Audio Connection Parts Power Distribution Block About this item 1 x 0GA IN, 3 x 4GA OUT: Input accepts 1/0 or 4 gauge wire, Outputs accepts 4 or 8 gauge wire, Come with 2 Pieces car amplifier power distribution, make wiring your system easier with high quality distribution blocks. 3-Way Connection Deep Wire Recesses: These distribution blocks with deep recesses to protect your wiring from being left exposed to the elements or other objects that might cause your system to malfuction. Applicable to auto, boat or other vehicles, protect your audio system., 5., Durable Shell: The shell is made of high strength industrial grade ABS plastic, which is not easy to damage and durable for a long time. DB13 Recoil 3 Way Power Distribution Block, 1 X 0/2/4 Gauge In 3 X 4/8 Universal Fit: Make wiring easier with distribution blocks.