Red wall tie acts as reinforcement for brick and block walls when embedded in cement mortar. They act as connection and permit in plane movement to accommodate differential movements in built-up brick/block walls. They are also corrosion resistance. Wall Ties are also referred to as cavity ties as they bridge the cavity, Brick ties as they are used on bricks and double brick ties as they are used in double brick walls. Wall ties are also available in stainless steel for area subject to spray from a surf beach.