HARKEN 57mm Aluminum Narrow Mastcollar ESP Block - 8 mm Clevis, 6097 Sheave Size_57 mm The becket can be used

The becket can be used to set up a 5:1 purchase for a boom vang or mainsheet system

Cheeks are black hard-coated anodized aluminum

Keep your winches clean and operating smoothly by flushing frequently with fresh water

Ball Bearing Orbit Blocks boast the highest strength-to-weight ratio available

HARKEN 57mm Aluminum Narrow Mastcollar ESP Block - 8 mm Clevis, 6097 Sheave Size_57 mm The becket can be usedThese teardrop mast collar blocks coordinate well with any Harken blocks in a deck layout. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. Use the blocks for direct attachment to padeyes, mast collar posts, perforated mast collars, or in mastbase situations where leads might change. ESP stands for Elegant Simple Products, which is a line of hardware that complements