{"title":"Quad Blocks","description":"\u003cp\u003eQuad blocks deliver maximum efficiency in high-ratio tackles. Four sheaves let you build powerful purchases for cascades, mainsheets and backstays, controlling heavy loads with less effort and greater precision.\u003c\/p\u003e","products":[{"product_id":"harken-40-mm-carbo-quad-block","title":"Harken 40 mm Carbo Quad Block","description":"\u003cp\u003eHarken Carbo blocks set the benchmark for lightness and strength in mainsheet systems. Fibre-reinforced composite construction saves weight without sacrificing strength, and high-load ball bearings give minimal friction and an instant response for fluid, dynamic trimming. 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