Livorsi Marine gauges are now easier than ever to install! The Plug-In feature on these instruments significantly decreases rigging time. The plug-in connectors are waterproof and resist salt corrosion. Gauges are encased in all non-ferrous hardware. These gauges include state-of-the-art L.E.D. lighting, for easy viewing in low light conditions.These gauges feature newly designed rims. The Mega rim has a bold strong look, making your gauges standout. It has less height to the rim, giving it higher visibility from an angle, an important factor when operating your boat. The Race rim has a sleek look, that make your gauges standout.Mega & Race gauges are available in Standard or Monster sizes. Have freedom with this new series, mix and match 2-1/16" with 2-5/8" and 3-3/8" or 4-5/8" speedos and tachs! Create the look you want, with the gauges you want. Connectors sold separately.