Jokers can help you complete your album. Jokers can replace missing stamps in your current album. There are 3 types of Jokers: 3-Star, 4-Star and 5-Star Jokers. After receiving a Joker, it must be used to replace a missing stamp within 24 hours. Jokers can be used to replace missing stamps in the album that is running at the time of purchase or when it was received. Jokers cannot be transferred to the next album and will expire if not used.