Designed for rope or wire halyards on large cruisers, the Harken halyard tensioner locks halyards at full hoist and frees your halyard winch for other functions. The one-piece aluminum car body is Hard Lube-anodized for durability. Track is extruded from 6061-T6 aluminum and hardcoat-anodized for a hard, long-lasting surface. Choose the 40 mm version in single-pin, double-pin, or triple-pin configurations based on required working load. 32 mm version available in single-pin only. Custom cars can be designed to handle higher loads.