About this item With other accessories, let you focus on playing and enjoy the joy of the instrument. Stainless steel needle springs, comfortable to the touch, according to ergonomic adjustment, each spring is just right, playing comfortably. Square outlet, increase the amount of air intake, more easy to blow. Opening hole design, sensing airflow, lifting tone, casing pad, improving sealing performance, better performance. 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.