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;