High Quality Negative Battery Terminal Connector. Great for adding power out for Amps, lights and other devices. Satin Nickel Finish Has the following outputs: 1X upto 2ga (10.5mm) 1X upto 4ga (9.5mm) 2X upto 8ga (5.3mm) Solid Metal construction for safe power transfer Course threaded grub screws to solidly secure wires Includes clear plastic protection cover to help avoid shorting and to keep terminal clean Dimensions (with cover): 65 X 52 X 22mm (2.5 X 2 X 0.85 Inches)