Check the listing for details. STERLING SILVER WINE BOTTLE COASTER - 4.5" DIAMETER IN GREAT UNUSED CONDITION.. Listed at 230.00 USD. DUE TO PERSONAL REASONS, I WILL NOT BE ABLE TO SHIP THIS UNTIL MID JUNE 2023. THANK YOU FOR YOUR PATIENCE.NEVER USED STERLING SILVER WINE BOTTLE COASTER WITH A MATCHING STERLING SILVER 3 PRONG PROTECTOR. IT IS IN GREAT NEVER USED CONDITION EXCEPT FOR THE TARNISH WHICH I AM LEAVING FOR THE NEW OWNER TO CLEAN WITH THEIR OWN CHOICE OF POLISH. THERE IS "925" for sterling STAMPED ON BOTH THE COASTER BOTTOM AND ON THE 3 PRONG PROTECTOR AS WELL. I TRIED TO TAKE A CLOSEUP TO DISPLAY THE STAMPS BUT TO NO AVAIL. I WILL TRY ANOTHER WAY TO SEE IF I CAN PHOTOGRAPH IT TO DISPLAY IN MY LISTING BUT REST ASSURED THE STAMPS ARE THERE. It is 4.5 inches in diameter and the protector insert will protect the base of the silver coaster from being scratched by the wine bottle. The 3 circle protector is also made of sterling silver and therefore does not have the risk of wood base that some wine coasters are lined with getting cracked or discolored from water damage. So you can use this coaster worry free as any condensation from the wine bottle will not affect it. I also have a smaller 4" wine coaster of the same design sold separately in a separate listing. That item is not tarnish much. Please check that out as well to compare. THIS SALE IS FOR THE 4.5", ONE COASTER ONLY. This will be shipped insured.Please study the photos and feel free to ask any questions or for more photos. Thank you for visiting.