Allen Brothers 20mm Dynamic Block

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Allen Brothers 20mm Dynamic Block

The Allen Brothers 20mm dynamic pulley block may look similar to some of the competitors but take a closer look and you'll see the small details which make a difference.

Made using quality materials including high strength 316 stainless steel, the sheave and cheeks are also moulded from advanced engineering polymers and the ball bearings are made from stainless steel.

This 20mm pulley is popular across a whole range of sailing boats.


  • Length: 37mm
  • Line diameter: 2.5 - 6mm
  • Breaking load: 540kg
  • Maximum dynamic load:115kg
  • Weight: 11.1g

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