This is a carbon fiber shoulder rest. I bought it a while ago and was using it, but I've decided to sell it because I'm drawn to playing without a shoulder rest and will be switching to that style. The feet show some wear, but I never found it inconvenient to use. It seems to be out of production now, and I hesitated to list it, but I hope to pass it on to someone who will cherish it. There is no box. Everything included is shown in the photos, so please be aware of that.