Are you looking for a professional, yet circuit breaker? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? , ! Our professional circuit breaker must meet you needs. It is one of the for you. Features - Color: Black. - Size:14.5x5x4.5 cm./5.71x1.97x1.77Inches - Material: Plastic, metal. - Voltage: 12 v - The product is made of material and the measurement error is allowed to be +/ -1-3cm. - Waterproof connector, can be installed in the circuit, can be fixed through the side 2 prefabricated hole. - 12-way fuse box relay seat, with spatular-shaped terminal and 12pcs fuse, 4PCS 12V 40A relay - Suitable for all ship, family car, car and racing applications. - Package content :1 x relay fuse box 12 x fuse 4 x 4 pin 12V 40A relay only the above package content, other products are not included. Package list: 1 x circuit breaker