Harken Aluminum Flip-Flop Block - 57mm Muir A tuned 2-stage bearing system

A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads

Available in custom colors for large volume orders

the PSS Shaft Seal helps to eliminate water in the bilge (25M% water tight) & wear to the propeller shaft

won't discolor in the sun

1 Elastic line from 1 to 2 m

Harken Aluminum Flip-Flop Block - 57mm Muir A tuned 2-stage bearing systemThe low profile Flip Flop blocks are lightweight and can be used for various leads on your boat including halyard leads, mainsheet leads and spinnaker sheet leads.