1.Reflectioncontrolled surface: Specially developed fabric quality minimizes disruptive light reflections during the game, precise signal display through highcontrast color palette for reliable match control 2.Ergonomic hand guidance: Specially shaped grip contour follows the natural hand movement for fatigue holding. Ensures stable signal transmission and smooth movement sequences during longer game use through optimized weight distribution 3. construction: Specially reinforced seams and highquality material prevent fraying, perfect for frequent game use and demanding referee activities 4.Versatile applications: Improves directional communication and game control through clearly visible signals effective control of game processes in football, handball and other ball sports