HARKEN 57mm Triple Fiddle Carbo Block - Swivel, Reinforced Cam Arms, HSB378 Block Size_44 mm Durable TPU fabric with full

Durable TPU fabric with full welded construction

this innovative line of blocks turns fiber-reinforced composite construction into a reliable strength-to-weight ratio you can depend on

When end controls are not used

cast 300 series stainless steel hasp and hardware

HARKEN 57mm Triple Fiddle Carbo Block - Swivel, Reinforced Cam Arms, HSB378 Block Size_44 mm Durable TPU fabric with fullLow 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