Unused YAMAHA trombone mouthpiece, model 48-S. - Brand: YAMAHA - Model: 48-S - Condition: Unused. No box. This was an accessory included when I purchased a trombone in August 2023. It did not come with a box originally. It has never been taken out of the clear plastic bag. Although it is unopened and unused, it has been stored for over two years. Please understand that there is a possibility of initial defects such as scratches, discoloration, or deformation if opened, so please purchase only if you understand this.