![Harken 40mm Carbo Block w/Spring Eyestrap [2652] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/84447XL_650x.jpg?v=1677102369)
Product Details
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
![Ronstan Series 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel Head [RF45130] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/70624XL_{width}x.jpg?v=1677097177)
![Ronstan Series 40 AP Sheave - Acetal Solid Bearing - 40mm (1-9/16")OD [RF41000] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55029XL_{width}x.jpg?v=1677092398)
![Schaefer Single Aluminum Block - 51mm Sheave [504-05] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/74715XL_{width}x.jpg?v=1677098770)
![Schaefer Series 3 Flat Base/Alum Cheek/Delrin Sheave [303-09] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/74707XL_{width}x.jpg?v=1677098767)
![Ronstan Kite Block - Black w/White Sheave (Pair) [RF13101-2] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55071XL_{width}x.jpg?v=1677092424)
![Ronstan Series 30 Ball Bearing Orbit Block - Cheek [RF35151] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55176XL_{width}x.jpg?v=1677092481)
![Ronstan Series 50 All Purpose Block - Single - Universal Head [RF51100] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55253XL_{width}x.jpg?v=1677092525)
