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Harken Swivel Carbo Block - Single/Double


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Harken's low-friction Carbo Air block is lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, the small, compact block has a very high working load for safe, easy trimming.

Single Double
Sheave Ø (mm) 29 29
Length (mm) 66 73
Weight (g) 26 51
Shackle pin Ø (mm) 4 5
Maximum line Ø (mm) 8 8
Maximum working load (kg) 150 299
Breaking load (kg) 454 737

Footnote: Maximum working loads and breaking loads for blocks based on cam strengths.