Quality Material: It is made of quality polycarbon plastic and zinc alloy, which has good current and voltage resistance and stronger conductivity. Multi-functional: It can play a role in preventing excessive current, protecting electrical appliances, and preventing hidden dangers caused by overheating of the line. Innovative Design: Oversized fixing screws with small serrated ends on the top can maintain a firm and consistent connection and prevent loose wires. Easy to install: The power cord of the car can be separated from multiple power amplifiers, which will not cause power hazards caused by docking, and will not generate current noise. The positive electrode, negative electrode, and ACC control electrode can all be used to help you connect properly. Safety Guarantee: Car Amp Power Distribution Block, low resistance, high current capability and high power series fuse. Professional manufacturing, stable performance, good reliability, high precision and durability.