This harp cover is marked with hole position, which is convenient for beginners to find the correct note position. The piano is and ABS resin , and the mouthpiece is round and does not hurt the mouth. This harp is fixed with multiple screws for fixing the cover, which makes the overall structure for and ensures the airtightness of the harp. The sound is more stable and natural, beautiful and strong, the tone is natural and , and the playing is labor-saving. phosphor bronze sound spring, anti-corrosion, anti-fatigue, great resonance effect, bright and full timbre.