Sierra 69721P Amega Series OB Twin Engine Gauge Kit Features Gauge Description Twin Engine Add On OB Gauge Kit Gauges 2 Black dial, red graduations, white numerals, vivid white pointer staff Scratch resistant curved glass lenses, with black, near-flush bezels U.S. and metric scales, with ISO symbols, where appropriate Perimeter and thru-dial lighting Optional add-on eyebrow or square bezels available see Gauge Accessories for details Contains 57901P Voltmeter 58255 7K Tachometer California Resid