Work on our range of blocks has headed the effort to find new standards of performance and construction. Allen invented the science behind the patented Allen dynamic bearing technology, and all our high performing blocks use this as a basis of the inner bearing system. Allen also invented and patented the Ultra-strap technology, a very narrow strap of high strength stainless steel, which can be lashed without the fear of line abrasion associated with blocks of traditional strap construction. 

The sheaves and cheeks are moulded from advanced engineering polymers, which are all wrapped up in meticulously designed stainless steel cheeks, adding strength to the moulded components. This gives you a beautifully engineered high performance block which easily handles maximum loads.