THIS IS USED BUT IN GOOD CONDITION. THIS DOES HAVE A LOT OF WEAR. I DO NOT KNOW ABOUT THESE AND HAVE NOT TESTED IT. BUT IT DOES HAVE WEAR. THE CORKS AND PADS ARE WORN OR MISSING. YHE MOUTH PIECE CASE IS CRACKED. THERE ARE SCRATCHES, SCRAPES, FADED, TARNISHES, AND OTHER WEAR. THE CASE HAS WEAR AS WELL. IT HAS SCRAPES, DENTS, FADED, WORN CORNERS AND EDGES, CHUNKS MISSING, REAL DIRTY ON THE INSIDE, AND OTHER WEAR. PLEASE SEE PICTURES FOR EXACTLY WHAT YOU WILL RECEIVE AND THE CONDITION. NOT SURE IF THIS WORKS, MAY BE GOOD FOR PARTS OR A COLLECTOR.