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-protection. High temperature resistance, abrasion resistance, and-safer use. Terminal bus bars are-ideal for car and marine boat wiring, helping to organize and clean up messy wiring, suitable for all types of power and ground distribution. 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, motorcycles, recreational vehicles, truck, caravans, yacht, boat, etc. Easy to install. Specifications: Material: Plastic Size:Approx.10.3x5x5.5cm/4.05x1.96x2.16inch Size:Approx.10.3x5x6.8cm/4.05x1.96x2.67inch Color: Black/Red Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Terminal Block