HARKEN 27 mm Midrange Toggle CB Spinnaker Pole Car, 1/2" Pin, 1645 Sailboat Blocks & Hardware_57 mm Ratchamatic HTE Block - Swivel - 1.5 x Grip Shallow bow shackles are proportionally

Shallow bow shackles are proportionally wider in their length than regular bow shackles

Kilogram for a kilogram of working load

Line ends can be inserted through the "open" base and then knotted for an easily grabbed dead end

The holding power of the 57 mm is as high as 10:1

HARKEN 27 mm Midrange Toggle CB Spinnaker Pole Car, 1/2" Pin, 1645 Sailboat Blocks & Hardware_57 mm Ratchamatic HTE Block - Swivel - 1.5 x Grip Shallow bow shackles are proportionallyHarken spinnaker pole cars feature recirculating ball bearings to permit adjustment under any load. They roll freely on low beam traveler track to allow crew to adjust for optimal sail shape. Midrange and Big Boat cars accept two popular toggle studs and Harken bell end fittings