KEY FEATURES | LOW FRICTION = HIGH SPEED| Gaming using low-DPI settings benefits from moderate resistance to the mouse feet when starting or stopping a rapid movement. Heat-treated at 200° C, the cloth surface of G240 provides just the right amount of friction for low-DPI maneuvers.CONSISTENT SURFACE TEXTURE| Heavy patterns and designs can interfere with sensor performance. G440 features a clean, consistent surface texture. This gives sensors better imagery for translating mouse movement into cursor movement, an improvement over inconsistent or dirty table and desk surfaces.MATCHED TO LOGITECH G SENSORS| G440 can give gamers access to enhanced sensor accuracy and precision. G440 uses a surface texture comparable to the optimal testing environment for Logitech G mice. STABLE RIGID BASE| The only thing sliding on G440 is your mouse. A natural rubber base is firmly bonded to the high-impact polystyrene core, keeping the rigid surface right on the desk where you put it.