![Harken 57mm Carbo Air Block w\/Swivel [2600]](https://cdn11.bigcommerce.com/s-dbaeft6mdz/images/stencil/1280x1280/products/73290/74796/79072XL__18618.1739375275.jpg?c=1 "Harken 57mm Carbo Air Block w\/Swivel [2600]")
![Harken 57mm Carbo Air Block w\/Swivel [2600]](https://cdn11.bigcommerce.com/s-dbaeft6mdz/images/stencil/500x659/products/73290/74796/79072XL__18618.1739375275.jpg?c=1 "Harken 57mm Carbo Air Block w\/Swivel [2600]")
57mm 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: 57mm / 2-1/4in
- Length: 110mm / 4-5/16in
- Weight: 87g / 3.1oz
- Shackle pin: 5mm / 3/16in
- Maximum line: 10mm / 3/8in
- Maximum working load: 359kg / 792lb
- Breaking load: 1079kg / 2380lb
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![Harken 29mm Triple Carbo Air Block w\/Swivel [344]](https://cdn11.bigcommerce.com/s-dbaeft6mdz/images/stencil/500x659/products/73267/74773/79048XL__89276.1739375277.jpg?c=1 "Harken 29mm Triple Carbo Air Block w\/Swivel [344]")
![Harken 40mm Carbo Air Fiddle Block w\/Swivel [2655]](https://cdn11.bigcommerce.com/s-dbaeft6mdz/images/stencil/500x659/products/73293/74799/79075XL__58846.1739375276.jpg?c=1 "Harken 40mm Carbo Air Fiddle Block w\/Swivel [2655]")
![Harken 29mm Double Carbo Air Block [381]](https://cdn11.bigcommerce.com/s-dbaeft6mdz/images/stencil/500x659/products/73271/74777/79052XL__43807.1739375278.jpg?c=1 "Harken 29mm Double Carbo Air Block [381]")