Rico Grand Concert Select Traditional (commonly known as Blue Box) for B♭ Clarinet #3 3 boxes, new and unopened This is one of the reeds I tried when I changed the mouthpiece I was using and switched the reed strength from 3.5 to 3. It was very easy to play, but I felt it was a bit thin with my mouthpiece at the time, so I have these unused, new reeds left over.