Harken 57mm Carbo Single Ratchet Block w/Swivel Becket 
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57mm Carbo Single Ratchet Block with Swivel & Becket
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing.
- Sheave Ø (mm): 57 mm
- Sheave Ø (in): 2-1/4 in
- Maximum line Ø (mm): 10 mm
- Maximum line Ø (in): 3/8 in
- Maximum working load (kg): 227 kg
- Maximum working load (lb): 500 lb