Stainless Steel LED Navigation Lights - Port & StarboardLED Side Mount Navigation Lights are approved for USCG 2 NM (Colreg 2 mile). One pair includes port and starboard lights. 400070 is constructed of stamped 304 stainless steel. Installs with two #8 FH fasteners (not included).All USCG approved navigation lights must be mounted properly to provide the correct visual alignment and allow unimpeded sight lines. Please refer to USCG regulations for 1 NM and 2 NM navigation lights for more information.WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to >P65Warnings.ca.gov.