This is a Protec trombone case. I've used it a few times, but I'm selling it because I'm retiring. The shoulder strap is unused. In addition to the instrument, it can hold a music stand (outer pocket), a music file (outer pocket), a thin A4 file (back pocket), two mouthpieces, and a care kit. A mouthpiece case is included. Since it hasn't been used much, there's no deterioration, but please understand that it has been stored by a private individual.