The Harken 57 mm Carbo Air Block Fiddle Block (2673) is a low-friction block that is lightweight, strong and reliable with very high working loads for safe, easy sail trimming.
- Maximum Working Load: 793 lb (360 kg)
- Breaking load: 2380 lb (1080 kg)
- Weight: 4.0oz (113g)
- Sheave diameter: 2-1/4" (57 mm)
- Maximum line size: 3/8" (10 mm)
Note: do not use Harken Equipment for human suspension.