The extremely low profile of Schaefer's Fixed and Hinged Fairlead Blocks keeps control lines and halyards close to the deck. Half-Moon Mast Base Blocks lead halyards and control lines aft to the cockpit, while also providing a low winch lead. Halyard Lift Turning Blocks lead halyards, topping lifts and other control lines aft. Blocks are mounted to bisect the halyard load angle for maximum tensile strength. Over-the-Top Blocks are designed to bring control lines over the forward edge of cabin houses, coamings or rails. They're perfect for raised salons.