Approximately (2-8%) (300-600) of the total number of white balls, which are large cells that help nitrofile in feeding the residues of cell decomposition and texture. These cells have a great ability to move and infiltrate through the wall of capillaries. They also build anti-inflammatory poisons. They are called a moving type. They are directed toward microbes to destroy them. They are also sometimes called clean cells. They push and remove foreign objects and bacterial residues.