Kit Includes: (1) Single MRBF Terminal Fuse Block, (1) MRBF Fuse of your choice between 30-300 Amps, (1) Red Insulator Cap, (1) Washer, (1) Lock Washer, (1) M8 Hex NutChoice of Fuse Sizes Available: 30A, 40A, 50A, 60A, 75A, 80A, 90A, 100A, 125A, 150A, 175A, 200A, 225A, 250A, 300AFuses have a Max Voltage Rating: 58V, Fuse Holder have an Amperage Rating: 30-300AIgnition Protected – Safe for installation aboard gasoline powered boats. IP66 – Protected against powerful water jets. 10,000 AIC at 14V DC satisfies ABYC requirements for DC Main circuit protection on large battery banks. Do not mount the fuse directly to the battery terminal. DOES NOT fit on SAE car battery posts.Cooper Bussmann is the Original Equipment Manufacturer (OEM) – These parts are of the same quality as Blue Sea’s brand as their OEM is also Cooper Bussmann. ***Please note that this fuse holder is designed to fit onto a standard M10 or M8 threaded post or be bolted to a threaded M10 or M8 insert. This DOES NOT install directly to an automotive (SAE) battery post.*** Bay Marine Supply brand MRBF Single Terminal Fuse Block Kit – Marine Rated Battery Fuse 30-300 AmpsCooper Bussmann is the Original Equipment Manufacturer (OEM).These parts are of the same quality as Blue Sea’s brand as their OEM is also Cooper Bussmann.Kit Includes:(1) MRBF Single Terminal Fuse Block(1) Red Insulator Cap(1) Washer(1) Lock Washer(1) M8 Hex Nut(1) MRBF fuse size of your choice between 30-300 Amps (fuse sizes listed below).Fuse Size List:30 Amps40 Amps50 Amps60 Amps75 Amps80 Amps90 Amps100 Amps125 Amps150 Amps175 Amps200 Amps225 Amps250 Amps300 Amps