Attwood's 2-Mile Stainless Steel Starboard Sidelights are made with a rugged stainless-steel cover for outstanding resistance to impact and corrosion. For use on boats up to 65.6 ft. (20 meters). Smooth contour prevent lines from snagging on housingStainless steel electrical contacts will not corrodeCompact size allows installation on confined decksTinned-copper wire leads for easy installation and corrosion-resistance