Made of High Performance copper Car audio distribution block,impact resistant snap-on plastic cover.The cover is made of high strength, nonperishable industrial-grade plastic High performance amp power distribution block,Low-resistance, high-current ability Suitable for auto car,RV,ATV,boat or other vehicles, protect your vehicle's audio amplifier system Power/Ground Distribution Block 1x0GA IN(IN)-2x 4GAOUT colour: as shown Material: Copper + plastic Package Contents: 1 x 2 Way Car Power Distributor Block Holder Only the above package content, other products are not included. 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.