Harken 150mm Runner Block Black Magic 75mm Blocks It has drain holes

It has drain holes

These chocks are molded from durable

It is compatible with many surfaces and will not harm most glass

3kg) at the outboard end of the boom with the main sail flaked as stored

Hayn Marine Rigging Pin 7/16" Diameter X 7/8" Grip

Harken 150mm Runner Block Black Magic 75mm Blocks It has drain holesHarken 150mm Runner Block Runners are used on running backstays of offshore boats to adjust mast bend for different wind conditions. Integrated sideplate bails and recessed cotter key help produce a smooth design that wont snag lifelines. Sideplates and sheaves Hard Lube anodized for maximum UV protection and a smooth surface. Center cage keeps Torlon roller bearings separated and parallel to reduce friction. Torlon is a registered trademark of Solvay