![Editor's Pick Harken 57mm Double Block-swivel Take An Extra 70% Off [0NhL1C8D]](https://cdn.shopify.com/s/files/1/1457/9634/products/Harken_57mm_Double_Block-Swivel.png?v=1486561050)
Editor's Pick Harken 57mm Double Block-swivel Take An Extra 70% Off [0NhL1C8D]
57 mm CarboThese smooth-running powerful performers make trimming easy, no matter how hard the wind blows. Carbo Air blocks are made of tough reinforced composite in a size and style to fit any system: singles, doubles, triples, quads, and quints; ra
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Editor's Pick Harken 57mm Double Block-swivel Take An Extra 70% Off [0NhL1C8D]
57 mm Carbo
These smooth-running powerful performers make trimming easy, no matter how hard the wind blows. Carbo Air blocks are made of tough reinforced composite in a size and style to fit any system: singles, doubles, triples, quads, and quints; ratchets and fiddles; soft and hard attach. Perfect for main, jib and spinnaker sheets on dinghies and sportboats; control lines on boats of all sizes.
Lightweight, strong and reliable fiber-reinforced composite construction.
Ball bearings, sheave, and sideplates are UV-stabilized.
Sheave Ø (mm) 57 mm
What Our Customers Say
Absolutely no complaints!
It's a sleek, modern device that performs exceptionally well.
- Emery G..
Absolutely no complaints!
An outstanding product in every way. No complaints at all.
- Daniel U..
Absolutely no complaints!
This is my new favorite gadget. I use it all the time.
- Jaxson N..
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