Features: Excellent durability, stainless steel studs and screws is anti-rust and anti-corrosion at sea. Base: Fireproof plastic. Glass fiber reinforced Nylon base with optimal mechanical strength and durability. Nickel-plated copper busbar contact plate has low resistance, maximum conductivity and anti-corrosion for protection. High temperature resistance, abrasion resistance, and safer use. 6 terminal bus bars are for ideal for car and marine boat wiring, helping to organize and clean up messy wiring, suitable for all types of power and ground distribution. Transparent polycarbonate cover adds for extra for protection, fireproof and dustproof, and for protection from accidental for touch. Environmentally friendly flame-retardant nylon base has best mechanical strength and durability. Stainless steel studs and screws are anti-rust and anti-corrosion, suitable for any environment. Widely used for car, pickup, Trailer, RV, motorcycle, recreational vehicles, truck, Van, caravan, yacht, boat, etc. 6-position single-row busbar provides neat and clean finish for any installation in your boat or car, perfect for all your electrical wiring projects. Easy to install, use M4 screws to fix it in place. Specifications: Material:Tin Plated Brass Size: Approx.3.3x10cm/1.29x3.93inch Style:1 pcs/1 Pair Mounting hole diameter: 4.2mm Termination (circuit connection): M4 nuts and bolts Termination (power distribution): M8 nuts and bolts Package Includes: 1x 6 Terminal Bus Bar Kit 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.