57 mm Aluminum Block — Swivel Sail Again The 494 and 495 Fast

The 494 and 495 Fast Release fairleads feature low-friction

Mounting hole spacing (in)2 1/4 in

Breaking load (lb)4409 lb

Harken® Lead Rings are simple

57 mm Aluminum Block — Swivel Sail Again The 494 and 495 FastPart No. 3215 Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. A center cage keeps Torlon roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep line from twisting. Torlon is a registered trademark of