Harken - Carbo Block

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29mm Carbo Air Block with Swivel Low-friction Carbo Air blocks are lightweight, strong, reliable - and affordable. Companions to the popular Harken Black Magic block line, these sm all, compact blocks have very high working loads for safe, easy trimming. Specifications: Sheave: 29mm / 1-1/8in Length: 66mm / 2-5/8in Weight: 26g / .9oz Shackle pin: 4mm / 5/32in Maximum line: 8mm / 5/16in Maximum working load: 150kg / 330lb Breaking load: 454kg / 1000lb Show more