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57mm Carbo Blocks

Harken Carbo AirBlocks(R) are 60% stronger and 30% lighter than their Classic blocks. The nylon resin sideplates are densely packed with long-glass fibers for a compact block with a high strength-to-weight ratio. Ball bearings, sheave, and sideplates are UV-stabilized with carbon black for maximum protection. Blocks feature Cam-Lock or U-Lock locking systems to lock the shackle in front or side positions, or swivel to keep line from twisting. The high-load 57 mm Carbo has a broad working range. Use for main and jib sheets on centerboard and keelboats like Lightnings, Dragons, Solings, and J/24s, and for mainsheet systems on catamarans.

Use for: Main/jib/spinnaker sheets, Mainsheet fine-tune, Control lines, Vangs, Cunninghams.

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