Unfortunately this item is sold out but never less a cool unique piece. This is the King Ring from Phenomenon being sold through Eproze ZoZoTown JP. 100% brass, offered in silver & gold with the Phenomenon logo engraved inside. Hopefully these are re-stocked very soon but I'm sure you'll be able to find them in exclusive shops here in the states. Crowns Up!

Images from ZoZoTown.