1. Modular box design for easy wiring configuration2. Glass fiber reinforced nylon base and shell ensure high mechanical strength and durability3. The box is detachable for barrier-free wiring, which reasonably accommodates the wires inside the vehicle and ship4. Use: The middle M8 is connected to the negative pole of the device, and the M8 at both ends is connected to the negative pole of the battery; collect small currents from each device, such as 3A 5A 10A 8A... Integrate a thick line to sink a large current within 300A battery.5. Function: Play a role of storage of a negative wire harness in cars, ships and yachts, gather the wires of the negative poles together, and the box storage is more beautiful.DescriptionName: Red Bus Bar Box 300A M8 StudTerminal bolt size: 4x M8 (5/16inch)Maximum voltage: DC 48VMaximum connection amplifier: 300AColour:RedMaterial:Nylon/glass fiber+stainless steel+copperPackage Contents:1 * busbar box4 * screwOnly 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.