YAMAHA 51 C4 Mouthpiece for a small shank. (1) Scratches There are noticeable scratches on the part that touches the mouth, but I did not feel any impact on the performance. (2) There are small scratches on the shank part due to use, but I did not feel any impact on the performance. Please refrain from purchasing if you are looking for a perfect item or if you are nervous, as this item has been stored at home. Thank you.