Little Chef Cooking Party Invitations. 8 pop up style invitations per package, each measuring 4in x 5in. Front cover reads: You're Invited! Inside: Spaces for the guest of honor, date, place, time and to RSVP. Approximately 4in x 5in. Cooking up a Birthday Party for your little chef has never been easier. We have all the ingredients you'll need for a wonderful party!