Lightweight, remarkably strong and exceptionally affordable, this 57mm Quad Boat Block with Swivel from Harken is the ideal companion for the popular Black Magic line of blocks.
Small, compact and low-friction, these boat blocks have very high working loads that deliver safe, easy trimming on every voyage.
Specifications -
- Maximum Line Ø (mm):10
- Length (mm):121
- Weight (g):340
- Sheave Ø (mm):57
- Maximum Working Load (kg):1080
- Breaking Load (kg):2270
- Shackle Pin Ø (mm):6