AMR Masonry Reinforcement Stainless Steel 2.7m Long is a steel reinforcement system that is at the bed joint to add strength to panels without having to make the wall thicker. These measurements suit 60mm to Suit Wall Thickness 140-150mm Block, 100mm to Suit Wall Thickness 215mm Block, 150mm to Suit Wall Thickness 100-125mm Brick/Block, 175mm to Suit Wall Thickness 190-200mm Block.