Hollow blade technology mimics the same process which helps to keep moisture inside stems longer and therefore to lessen the temperature of a lawn. Transpiration which cools plants occurs through the stomatal apertures. Cool in hot climates and but supports its quality to keep temperature of a lawn stable, the hollow veil in the center of the turf leaves makes up not only for rightfully dominant realistic look of grass. In plants, or holes) bordered by guard cells that open and close the pore, leaf surfaces are dotted with stomata (openings. Transpiration serves to evaporatively cool turf as the escaping water vapor carries away heat energy. Unique Hollow blade design by GST is something you will never find elsewhere.