Harken 29mm Carbo Double Swivel with Becket



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.

On the Flying Scot, this block is used on the basic 5:1 self-cleating boom vang system.


Additional information

Weight 0.11 lbs
Dimensions 5 × 3 × 4 in

29mm, 1 1/8"

Max Line


Max Working Load

990 LB


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SKU: 870343 Category: