This is a Kun violin shoulder rest. It can be used for sizes 1/2 to 3/4. The sponge part has peeled off and has been repaired. As you can see in the photos, the sponge is slightly missing. The rubber parts that come into contact with the instrument are not torn and are still in usable condition, so I am offering it for sale. They have become very expensive recently. There is no box. I will remove the feet and wrap it in bubble wrap for shipping. #violin #shoulder rest #fractional size #1/2 #3/4