[Strong Materials] This product is made of nylon and polycarbonate housing with nickel-plated copper bus bars, ensuring safe use. It offers low resistance, maximum conductivity, high temperature resistance, and wear resistance. The 4-terminal bus bar helps organize and simplify wiring for various electrical and ground distribution applications.[With Dust-Proof Cover and Stainless Steel Studs] The cover is clear and resistant to fire and dust, providing added protection against accidental contact. The flame-retardant nylon base material delivers good mechanical strength and durability. Stainless steel studs and screws are rust-resistant and suitable for various environments.[Wide Application] This product is suitable for cars, pickups, trailers, trucks, RVs, motorcycles, caravans, yachts, boats, and more. The 4-position single-row bus bar provides a neat and clean installation surface, ideal for electrical wiring projects.Maximum voltage: 300V AC / 48V DC Continuous rating: 130A AC / 150A DC Terminal screw: M6 x 2 Binding post: M6 x 2 Color: Black & Red Material: Nylon + Metal Size: 4.72 x 0.79 x 1.69 inches Package Contents: 1 x Black Base 4 Screw Terminal Power Distribution Block 1 x Red Base 4 Screw Terminal Power Distribution Block 4 x Mounting Screws Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause slight color variations between the item and the image. Measurement may vary by +/- 1-3 cm.