This is a thumb rest specifically for Buffet Crampon clarinets. Please also check the photos for important notes. Purchased from a musical instrument store in 2021. I was in the wind band at the time and used it for about six months. I cleaned and stored it carefully after each use. As far as I can tell, there are no noticeable scratches or damage, but please check the photos to confirm. Please understand that this is a used item before purchasing.