HARKEN 4 mm Stamped Shackle, Pair, 246.PAIR Sailboat Blocks & Hardware_40 mm T2 Soft-Attach Double Block Cruising ESP blocks have a

Cruising ESP blocks have a simpler construction and bearing system than Black Magic® or Harken stainless steel blocks

consistent performance - even under high loads

You should service your winches at least once during the preseason

Torlon thermoplastic is an exceptionally strong crush/impact-resistant bearing material that withstands heavy long-term use and shock loading

Amara and corded nylon

HARKEN 4 mm Stamped Shackle, Pair, 246.PAIR Sailboat Blocks & Hardware_40 mm T2 Soft-Attach Double Block Cruising ESP blocks have aStamped shackles are used on most Harken Small Boat Blocks and are appropriate for low loads. For higher loads, select forged and high resistance shackles instead. Special Order Only