About this item This fits your . Make sure this fits by entering your model number. Opening hole design, sensing airflow, lifting tone, casing pad, improving sealing performance, better performance. Stainless steel needle springs, comfortable to the touch, according to ergonomic adjustment, each spring is just right, playing comfortably. The tube body and the buttons are made of high-quality materials, which ensure the pitch and tone, which allows the player to play better effect. Square outlet, increase the amount of air intake, more easy to blow. With other accessories, let you focus on playing and enjoy the joy of the instrument.