This is an expanded shell coin for the new 500 yen coin. It fits over a regular 500 yen coin or a shim shell. This gimmick has a wide range of applications, allowing for various magic tricks. The photos show both the obverse and reverse sides, but the item is a single coin. This is a rare gimmick. Please check the photos carefully. ※This is a magic trick prop and cannot be used as currency. Please never use it as money. We are not responsible for any issues that may arise from its misuse.