Contura Switch Actuator. Color: Black. Number of Lenses:Double. Mounts on any Blue Sea Systems' Contura Switch. Constructed of thermal plastic polycarbonate with a hard nylon surface overlay. For each embedded LED there is a corresponding number of lenses. WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.