Dual Bus Bar with removable connecting link Module box design for easy wiring configurations Glass Fiber reinforced Nylon base and enclosure ensures great mechanical strength and durability Removable windows for unobstructed wiring Nickel plated brass bus bar allowing current up to 100A Blank write-on space on the top allows easy labeling for each branch The box is removable for barrier-free wiring and reasonably stores the wires inside the vehicle and ship. Product usage: M4 in the middle is connected to the negative pole of the device, and M6 at both ends is connected to the negative pole of the battery; small currents are collected from each device, such as 3A 5A 10A 8A... Integrate a thick wire to collect a large current within the range of 100A. to the battery. Product function: It plays the role of storing a negative wire harness in cars, ships and yachts. It brings the negative wires together to make the box storage more beautiful. Bus Bar Material:Brass, Nickel plated Max Operating Voltage:DC 48V Max Continuous Amp:100A [Product role]:The wire harness together, reasonable storage of car and boat inside the line [Applicable scope]:Automobile, RV, ship, yacht and other power systems Colour:Red Material:Nylon + fiberglass Size:(L x W x H):138 x 69 x 44.5mm;Terminal Stud Size:4 x M6 (1/4inch), Screw Size:12 x M4 (5/32inch) Package Contents: 1 * 100A Bus Bar(12xM4 Terminal Studs,4xM6 Terminal Studs) 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.