It's a bit dirty, but I think it's clean. It makes a sound. I think it's perfect for beginners. Includes case and mouthpiece. Although the length of the tubing is the same, a cornet is smaller, so you hold it closer to your body. Because of this, children with smaller builds may find it easier to hold a cornet correctly compared to a trumpet, making it easier to learn the proper playing technique. [Included Items] 1. Cornet body 2. Case 3. Grease 4. Valve oil 5. Cloth 6. Mouthpiece