SPECS: Two holes for #8 fasteners For 12-volts DC only 5 in. long harness with butt connectors 10-gauge wire size Plate Dimensions (in.): 2-1/2 W x 1-3/4 H Depth Behind Panel: 2-3/4 in. Installation Hole Size: 1-1/8 in.-dia. DESIGN: Male plug, motor side Molded rubber connector Quick easy connection between electric trolling motor and power source