Product Description
Harken’s 57mm, 5-sheave block with swivel is a boom block for use with #56-9953 for a 10:1 mainsheet system. Swivel can be locked, if desired.
Low-friction Carbo AirBlocksĀ® are lightweight, strong, reliable and affordable. These small, compact blocks have very high working loads for safe, easy trimming.
Specifications:
- Sheave Diameter: 2-1/4″
- Length: 4.3125″
- Weight: 15 oz
- Shackle Pin Diameter: 1/4″
- Maximum Line Diameter: 7/16″
- Harken #HC7668/ HAR2762