You can now find new Zircon models in 29mm sheaves and triple sheave versions of the 40mm and 57mm. New sizes make Zircon appropriate for control lines in multi-part purchases. And they react immediately. So, when the pressure gets light, and sailors want to ease that 24:1 cunningham they've rigged under the deck, it will move. Since the first tests, Zircon blocks have overcome inertia so easily, trimmers have reacted in fractions of time and sheet-creating better-matched sail shapes that increase boat speed. The update here is that now, they're great for more than sheets. Learn more about the 29mm Zircons ? https://bit.ly/Zircon29mm

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Harken® Fly blocks are designed to provide strength beyond mass, offering big holding power in a low-aero package. Designed specifically for use with very small-diameter line, these friction-fighting blocks have an incredible working load for their small size. Fly blocks are in their element rigged in cascade systems aboard foiling dinghies, catamarans, sportboats - even in multi-part control-line purchases aboard TP52s. Fly blocks are available in 18, 29, and 40 mm sizes. The 18 mm blocks feature an integrated stainless steel inner race and rivet, stainless steel ball bearings and composite fiber-reinforced sideplates, and are available in single, double, and before long, triple sheave models. The 29 and 40 mm blocks feature a one-piece titanium sheave that doubles as the outer bearing race for their stainless steel ball bearings. Learn more about Fly blocks: https://bit.ly/Harken-Fly-Block

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