These "How Well Do You Know The Birthday Boy or Girl" game cards are printed on premium satin paper and can be written on with any pencil or pen without smearing. Each card measures 5.5 x 8.0 inches and comes with a classic design that your guests will absolutely love. With 50 sheets included, they are the perfect activity for any large birthday party! Once the event date arrives, let your guests try and guess the correct answer to all 20 questions. Later in the night, ask the birthday boy or girl for his or her answers. The guest with the most correct answers wins the game! The whole set of cards comes securely packaged in a rigid mailer envelope to ensure that you receive it in perfect condition. Copyrighted design registered by Papery Pop.