Harken 381 29mm Double Carbo Block

Low-friction Carbo AirBlocks® 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 compact 29 mm Carbo is extremely strong. Use our miniature Carbo as a mainsheet block on small dinghies such as the Optimist, or for low-friction control blocks on any size boat.

Use for:

• Outhauls

• Cunninghams
  

• Vangs
  

• Traveler controls
  

• Barberhaulers
  

• Flag halyards
  

Specifications:

• Sheave Ø (mm) - 29 mm

• Length (mm) - 54 mm
  

• Weight (g) - 34 g
  

• Maximum line Ø (mm) - 8 mm
  

• Maximum working load (kg) - 299 kg
  

• Breaking load (kg) - 737 kg