Features: Ni-plated copper busbar contact plates offer low resistance, maximum conductivity and corrosion for protection. Provides a neat finish to any installation for your car, boat, caravan and RV. Polycarbonate shields and stainless steel screws offer good heat and corrosion resistance. Bus bars are a way to connect incoming wires, increasing contact area, reducing energy consumption and lowering temperature rise. It has good versatility and strong practicality. Safe, reliable, time-saving and convenient. Specifications: Material:ABS+Metal Length: Approx.12.1cm/4.76inch Length: Approx.18.2cm/7.16inch Color:Black/Red Package Includes: 1x Bus Bar 6x Terminals note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.