Markwort Strike Zone Home Plate MW1729 Provides visual feedback for catchers and pitchers learning to work the edges of the plate. Light weight for easy carrying and can be placed on top of a regular home plate. Regulation size Home Plate with color coded strike 'zones'. Three zones indicating center (red), just off-center (yellow), and 'on-the-edge' (green). Helps provide visual reference for noting location of thrown strikes. Great umpire training tool for learning the strike zone.