Combination sidelight. Die-cast zinc alloy, chromium plated, with black plastic base. Red and green fresnel lens, non-corrosive double contact electric socket with 12 volt bulb. Height 1-11/16", base size, 4-1/16" x 3-3/16". Skin packed for peg-board display. One-mile combination sidelight for power boats under 12 meters (39.4 ft.).