Harken 40 mm Fiddle Carbo Air® Block — Swivel, Cam Cleat

Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken® Black Magic® line, these small, compact blocks have very high working loads for safe, easy trimming. The 40 mm fiddle is an excellent choice for 3:1 and 4:1 tackles on dinghy vangs and mainsheets, as well as for controls such as cunninghams and internal boom outhauls on larger boats.


  • Breaking load (kg) 680
  • Length (mm) 115
  • Maximum line Ø (mm) 6
  • Maximum working load (kg) 204
  • Shackle pin Ø (mm) 4
  • Sheave Ø (mm) 40
  • Weight (g) 125

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