Harken 29mm Carbo Double Swivel Block with Becket

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 Harken’s miniature Carbo as a mainsheet block on small dinghies such as the Optimist, or for low-friction control blocks on any size boat.

Sheave Ø: 29 mm

Length: 85 mm

Weight: 54 g

Shackle pin Ø: 5 mm

Maximum line Ø: 8 mm

Maximum working load: 299 kg

Breaking load: 737 kg