Silver Heart Keyring Hammered. This is a lovely Silver Keyring in the shape of a Heart which would be a great gift for that special person in your life. The Heart Keyring has a hammered finish on one side and plain on the other side. The plain side can be engraved. The Silver Keyring has a nickel split ring, measures approx 3cm x 3cm and is presented in a gift box. Made in the UK by our silversmith.