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.<br> 3-Way Connection: perfect for multi car amp systems, nickle plated internal materials eliminates the possibility of corrosion, rust, oxidation, or premature wear on speaker wire connection points.<br> Deep Wire Recesses: distribution blocks with deep recesses to protect wiring from being left exposed to the elements or other objects that might cause your system to malfuction.<br> Screw-down Wire Clamps: Hex head tops and oversized set screws with small serrated ends a strong consistent connection that instils confince against loose wires.<br> Easy to Install: Screw-down wire clamps, impact resistant snap-on plastic cover, solid brass construction for corrosion resistance, ensures you get the out of your system that you expect.<br> <br> Colour: black<br> Material: plastic + zinc alloy<br> <br> Package Contents:<br> 2 * 3 Way Power Distribution Block<br> <br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.