1Wide Application: 4 stud high current junction blocks are widely used in power supply systems for automobiles, RVs, boats, yachts, etc. 2Tidy Storage: Distribution block can bring the wire harnesses together to reasonably store the wires inside the vehicle and boat, providing a neat environment. 3High Performance: Brass contact plate with excellent current transfer and weather resistance, nylon base with insulation and high strength. 4Installation Details: The cover of this bus bar 12v marine will allow 180 wire lug installation and can meet variety kinds of installat methods of end terminals. 5Long Lasting: Upgraded design allows for use in extreme conditions, including marine environments, and professional performance brings you reliable results.