1 pair of 12v power distribution block, includes a positive power distribution block and a negative power distribution block. The battery distribution block rated 250A when work in 12v supplier circuit, and the battery terminal block can handle MAX 48v source power. The battery bus bar terminal block includes 4 x 3/8 inch stud terminal and 3 x 8 screw terminal, which makes the 12v bus bar be to accept size terminal connectors and wires. Each power bus bar will come with a protect cover and two nuts, which helps to shelter as much exposed area as possible to reudeces the risks of accidental contact and prevent short circuit, makes the circuit . The 12 volt bus bar with cover to make the wiring of circuit become and tidy, preventing mess harness from causing electric short circuit, suitable for automotive, car, truck, marine, boat, solar wiring. Material: Plastic colour: Black + Red Package Contents: 1 x red Distribution Block 1 x black Distribution Block Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.