This quirky keyring is an ideal gift for your son when he leaves home for the first timeor earns his own set of house keys the keyring features a calender design on the front with a heart over his date of birth beneath the calendar there is the message the day you became my son the back of it is engraved with your own personal message to him it is made from sturdy acrylic and is available in six different colours a standard 28293031 day month is used in the design and days of the