29mm Triple 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 small, compact blocks have very high working loads for safe, easy trimming. Specifications: Sheave: 29mm / 1-1/8in. Length: 73mm / 2-7/8in. Weight: 74g / 2.6oz Shackle pin: 5mm / 3/16in Maximum line: 8mm / 5/16in Maximum working load: 449kg/ 990lb Breaking load: 907kg / 2000lb Great Product
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