HARKEN 75mm Aluminum Stand-Up Block, HBB297 Type_Headsail Furler and configuration

and configuration

Palm grip handle when two-handed cranking is required

17-4 PH stainless steel features good corrosion resistance

This 19mm double rivet head block is ideal in a wide range of systems that provide a 4:1 or better purchase

Available with highly polished Stainless Steel or Black Hardcoat anodized Aluminum cheeks that are reinforced with large Stainless Steel V-straps and head posts

HARKEN 75mm Aluminum Stand-Up Block, HBB297 Type_Headsail Furler and configurationBlack 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. Black Magic blocks are easy to clean and service. They have few parts and no loose balls or rollers to misplace. Unlike blocks that are riveted, fasteners allow quick disassembly with a single hex wrench.