This SEYDEL LEATHER BAG is for one harmonica from the SEYDDL Blues series and is made of genuine leather. This pouch is usually part of the delivery of the SEYDEL Blues series: SESSION, SESSION STEEL, SOLIST PRO, SOLIST PRO 12, FAVORITE. If you've lost yours or need extras, this is the best fit you can get. It fits any diatonic 10-hole harmonicas and offers protection against dust and scratches.