1Circuit Protection: With excellent current protection ability, can effectively prevent circuit short circuit, overload and overheating, to ensure the safe operation of equipment and circuits. 2High Temperature Resistance: Made of high temperature resistant material, it can work stably in high temperature environment for a long time, and will not be damaged by high temperature. 3Rust Resistance: The kit has good rust resistance, suitable for a variety of harsh environmental conditions, can be used for a long time without rust and damage. 4With 7 Anl Fuses: You will receive 7pcs Anl fuse, 1pc 60A, 1pc 100A, 1pc 150A, 2pcs 200A, 1pc 250A, 1pc 300A, and terminal block size is M8(5/16in). 5Widely Used: 500A Anl fuse holder set is applicable for automotive and Marine audio and video systems, inverters and audio amplifiers to ensures electrical safety.