Clark Kent will never forget which keys are his after securing them to a Superman Keychain. Placed upon this super-keyring are the keys to the Fortress of Solitude, and he wouldn't want to misplace those... again. Made to withstand time travel and the rigors of fighting Earth's greatest foes, this Kryptonian keyring keeps your important keys safe. The “key” to Clark Kent's success? Having his keys securely fastened on a Superman keychain.