Describe：

The marine DIN81907 Pedestal Roller Fairlead is a type of deck fitting used on ships and boats to guide mooring lines and reduce the friction and wear that these lines might experience when in use.  The fairlead is mounted on a pedestal base, which raises the rollers above the deck level, allowing lines to pass through without contacting the deck. This elevation helps in managing lines more efficiently and reduces wear on the lines and the deck.The surface is often treated or coated to enhance its resistance to corrosion and wear.

Drawing：