The Allen 20mm dynamic bearing block is simply the best designed and engineered micro block on the market. -Line friendly soft contours and articulation. -Stainless steel cheeks and inner bearing systems handle maximum loads central hole for tie-on becket. Sheave Dia 20mm Length 37mm Line Dia. 2.5-6mm Shackle Pin 4mm Break Load 540Kg. Max Working Load 115kg Weight 15gm















