Description: 1.Reasonable wiring: connect up to 5 No. 4 or No. 8 or No. 10 wires with an amplifier. It is also poible to combine the ground wires of multiple power amplifiers into one ground point.Use high-quality distribution blocks to make your system wiring easier. 2.High performance: power distribution block, low resistance, high current capability and high power built-in fuse.With plastic cover for impact resistance, the protective cover is made of high-strength, hard-to-break industrial-grade plastic. Screw fixed, the shell is not easy to fall off. 3.Wide range of applications: suitable for cars, ships or other vehicles to protect your car audio system. 4.Service: Friendly After-sale Service - Our relationship with our customers doesnt end after the sale is complete. Were here for you if youre unsatisfied for any reason or have an iue with the product. Friendly customer service will ensure your satisfaction is our top most priority. Specifications: Material: Zinc Alloy Size: 40 * 45 * 30mm Package Included: 1 * Junction box hello, guys, thank you for visiting my store.You can contact with us to get more detail of the goods .Welcome to visit.Hope you have a nice day!