The 57 mm Carbo AirBlocks® are 60% stronger and 30% lighter than Harken's classic blocks. - Description: Single w/ swivel w/ 150 Carbo-Cam**
- Sheave diameter (in): 2-1/4
- Length (in): 4-5/16
- Weight (oz): 9.5
- Maximum line diameter (in): 7/16
- Shackle pin diameter (in): 3/16
- SWL (lb): 136**
- Breaking strength (lb): 750**
Use for: - Main/jib sheets
- Spinnaker Halyards
- Control lines
**SWL and breaking strengths based on cam strengths |