The Harken 57mm Carbo Ratchet Block w/Becket is a sailboat block designed to control lines and sheets. It features a ratcheting mechanism that allows you to hand-hold lines under load while offering controlled easing without having to use a winch as well as a becket, a mounting point for attatching it to a deck or other fixed location. These small compact blocks have very high working loads for safe, easy trimming.
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Specifications
| Bearing type | Ball bearing |
| Recommended line - Max Ø (mm) | - |
| Sheave Ø (mm) | 57 |
| Ratchet | Yes |
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