Weldable bow eyes are designed to add or replace a tie-down point on your boat's bow. Sand cast aluminum construction, for maximum corrosion resistance and durability. Weldable for permanent installations. Designed for use on aluminum vessels. Cast 356-T6 Aluminum. This alloy contains lead. A 1-13/16" B 13/16" C 2-3/4" D 9/16" Pack 10