One pair of these flush-mount side lights includes one each for the Port and Starboard side of your boat. Flush-mount design provides sleek, modern appearance after installation. Stainless steel housing ensures long-term use and resistance to corrosive elements. Approved for USCG 1 nautical mile (A-16). Note: All USCG approved navigation lights must be mounted properly to provide the correct visual alignment and allow unimpeded sight lines. Installs with #8 RH fasteners (not included). 7-3/4"L x 2-5/16"W x 2-11/16"D.