Blue Sea ST-Blade Battery Terminal Mount Fuse Block Kit Blue Sea Systems Fuse Block Kit allows you to easily add 4 fused circuits to the terminal of a battery. With this kit, you can provide power to new accessories in your boat. 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 ABYCUSCG insulation requirements Ignition Protected-meets ISO 8846 and SAE J