HARKEN 57mm Triple Fiddle Carbo Block - Swivel, Reinforced Cam Arms, HSB378 Deck Organizers_3 Sheave Deck Organizers Schaefer 5 Series single Aluminum

Schaefer 5 Series single Aluminum Block with Delrin™ sheave ensures smooth operation with the high safe working load

high-strength resin and designed for small-diameter lines favored by racers

Fully padded backpack harness

Periodically clean with mild detergent and water solution

it has been used for aerospace applications

HARKEN 57mm Triple Fiddle Carbo Block - Swivel, Reinforced Cam Arms, HSB378 Deck Organizers_3 Sheave Deck Organizers Schaefer 5 Series single AluminumLow friction Carbo Air blocks are lightweight, strong, reliable, and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming. The lightweight 57mm Carbo Blocks have a high load capacity and broad working range. Use for main and jib sheets on centerboard and keelboats like Lightning, Dragons, Solings, J 24s, and catamaran mainsheets. Note: Special Order Only