Similar to Nabrico Part #: DF-528. A: 8″. B: 12″. C: 13.31″. D: 19″. E: 15″. F: 17.5″. G: 5.25″. H: 1.25″. I: .75″. J: 1.5″ R. Weight: 102 lbs. ? Made from ASTM A27 cast steel and are built to withstand the toughest conditions. No surface paint or finish to maintain quick, easy and safe weld-ability to the deck of any barge or workboat. Designed specifically to guide mooring lines on deck. They act as a guide to feed a line or wire in a particular direction while minimizing chaffing. They are typically welded to the bulwark of a vessel.