Blue Sea Systems ST Blade Terminal Mount Fuse Block Kit - Easily add 4 fused circuits to the terminal of a battery. Mounts on the battery terminal stud Screw terminals for securing wires Nylon insulated ring terminals included for each screw terminal Accepts small format circuit labels Insulating cover meets ABYC/USCG insulation requirements Ignition Protected–meets ISO 8846 and SAE J1171 for use in a gasoline engine compartment Includes a 4-circuit negative busbar Includes write on labels Includes four 16-14 AWG and four 12-10 AWG Nylon insulated ring terminals