HARKEN 75mm Stainless Steel Mastcollar ESP Block, 6073 Block Size_125 mm efficiency

efficiency

performance-packed engineering remains exactly the same

Weight savings on large offshore boats can be as much as 200 lbs

Narrow high-load sheaves in mastheads improve sail handling

Smooth surfaces and radiused center holes minimize line wear

HARKEN 75mm Stainless Steel Mastcollar ESP Block, 6073 Block Size_125 mm efficiencyCruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. ESP stands for Elegant Simple Products, which is a line of hardware that complements other existing blocks in looks but is simpler in design and construction.