Harken 57 mm Carbo Air® Block — Swivel

Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming.


  • Breaking load (kg) 1079
  • Length (mm) 110
  • Maximum line Ø (mm) 10
  • Maximum working load (kg) 359
  • Shackle pin Ø (mm) 5
  • Sheave Ø (mm) 57
  • Weight (g) 87

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