Features: The fuse holder has a protective cover for safety and durability. The cover to provide external protection for your wire box and wires. Easy to operate, protective and dustproof design. Suitable for battery and alternator connections. Universal Application: for Automotive, Car, Truck, Boat, Tankers, Marine, Suv, Yacht, Rv, Van, Ships etc. Specifications: Voltage: 10V-32V DC Material: Plastic, Metal Color: Colorful Terminals: 5A, 10A, 15A, 25A, 30A, 35A Fuse Holder Size: 116x53x42mm / 4.57"x2.09"x1.65"(L*W*H) Fuse Size: 19x19x5mm / 0.75"x0.75"x0.20"(L*W*H) Fuse Hole Diameter: 5mm / 0.20"(D) Accepting Fuse: Standard Blade Fuse (ATO / ATC) Note:Please allow 1 mm to 3 mm manual measurement errors.Package Included:1 Set Blade Fuse Block Box HolderATC/ ATO Fuses Protect Your Power Distribution System: You need them to prevent damage to your equipment from current overload. The job of an ATC / ATO fuse is to protect any of your equipment's vital wiring. Vehicle wiring can be pretty deeply entrenched and integrated into an electrical system making it extremely difficult to locate and replace. When a current large enough to fry a wire or damage a vital component is drawn through some electrical system in a vehicle, the vehicle's ATC fuses will burn out first and prevent that current from doing any problems.