![Harken 40mm Carbo Block w\/Spring Eyestrap [2652]](https://cdn11.bigcommerce.com/s-e6ht4dde3g/images/stencil/1280x1280/products/26544/32474/84447XL__03846.1601550042.jpg?c=2 "Harken 40mm Carbo Block w\/Spring Eyestrap [2652]")
40mm Carbo Block with Spring & Eyestrap
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.
Features:
- Sheave Ø (mm): 40 mm
- Sheave Ø (in): 1-9/16 in
- Maximum line Ø (mm): 10 mm
- Maximum line Ø (in): 3/8 in
- Maximum working load (kg): 220 kg
- Maximum working load (lb): 485 lb
![Harken 40mm Carbo Single Fixed Block [2650]](https://cdn11.bigcommerce.com/s-e6ht4dde3g/images/stencil/500x659/products/26543/32473/84446XL__78432.1601550040.jpg?c=2 "Harken 40mm Carbo Single Fixed Block [2650]")
![Harken 40mm Carbo Air Cheek Block [2644]](https://cdn11.bigcommerce.com/s-e6ht4dde3g/images/stencil/500x659/products/23327/27978/79742XL__79563.1601543483.jpg?c=2 "Harken 40mm Carbo Air Cheek Block [2644]")
![Harken 40mm\/29mm Carbo Traveler Block [2649]](https://cdn11.bigcommerce.com/s-e6ht4dde3g/images/stencil/500x659/products/26542/32472/84445XL__77966.1601550038.jpg?c=2 "Harken 40mm\/29mm Carbo Traveler Block [2649]")