This Harken Carbo block 57 mm quadruple with swivel is developed for efficient sail trimming, where low friction, strength, and low weight are essential.
The Carbo series is constructed from fiber-reinforced composite and provides a strong, light, and reliable block for demanding trimming tasks on board.
The block is suitable for use on dinghies and sailboats, including for mainsails, jibs, spinnaker sheets, and control lines, where the load requires a smooth-running solution.
Key features
Quadruple block with swivel
57 mm sheave diameter
For ropes up to 10 mm
Working load of 1080 kg
Fiber-reinforced composite construction
