Construction Kids Personalized Note Card Set - 24 cards & envelopes Personalized Note Cards - Set of 24 with white envelopes Our blank-inside cards are 4 1/4" x 5 1/2", quality stock, and come in a gift package. Blank-inside folded cards are perfect for notes, thank yous, and even invitations. Specify 1 line, up to 18 characters and spaces. Please Note: We are unable to print foreign characters in personalization.