HARKEN 75 mm Aluminum Black Magic Footblock with Lockoff, 3236 Item Type_Friction Rings optimized systems decrease overall line

optimized systems decrease overall line clutter because they use less line than traditional gross-trim/fine-tune systems

Ball-bearing swivels have lower friction and higher working loads than non-ball-bearing versions

The HARKEN 32 mm Control Block/Purchase Upgrade Kit (T32KIT) includes components to upgrade control‑line systems for smoother

Carbo control blocks with Delrin® ball bearings let cars instantly adjust and release under load

preventing the jib halyard (and additional halyards) from wrapping around the foil

HARKEN 75 mm Aluminum Black Magic Footblock with Lockoff, 3236 Item Type_Friction Rings optimized systems decrease overall lineTeardrop blocks are ideal as masthead leads and in other applications where limited articulation or direct attachment is desired. When attached to a compatible padeye, teardrop blocks will not hit the deck when lines are slack but allow enough movement to ensure fairleads when jumping halyards. They are often used on permanent backstays of fractionally rigged boats where the backstay can be spliced directly to the head of the block. Sideplates and