Allen 40mm High Load Single Cheek Block Apparel & Personal Gear to backstay tensioning systems and

to backstay tensioning systems and everything in between

The stainless-steel head loop also ensures the block stays in the right orientation when being used

Allen 30mm Back To Back Block

Element's design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing

Cover: Polyester/Technora

Allen 40mm High Load Single Cheek Block Apparel & Personal Gear to backstay tensioning systems andAllen 40mm High Load Single Cheek Block Made from high strength, lightweight glass loaded nylon and featuring Allens dynamic bearing technology for a high performance block suitable for keelboats and dinghies. 40mm dynamic blocks are perfect for use on main, jib and spinnaker sheets on dinghies and keelboat control lines. Bearings Dynamic blocks feature our patented bearing system which uses twin rows of stainless steel ball bearings running on a