Black LED Comination Bow Light - Injection Molded ABS - 1nmBlack LED Combination Bow Light (400058) is approved for USCG 1 NM (Colreg 1 mile) and is constructed of injection molded ABS with a Zamak base. Installs with two #8 RH fasteners (not included). IP67 waterproof rating. 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.