The best instrumentation for big boats. White graphics on deep black faces, with very rugged black nylon housings. Low-profile bezels in polished stainless with scratch-resistant glass. All have 2-1/8"dia. housings, except tachometers which have 3-3/8"dia. housings. Reverse polarity protected. Silicone-damped pointers provide smooth sweep and easy reading in rough water.