Let the celebration begin! Like a burst of fireworks, this colorful design starts off the occasion with a bang! Happy Birthday-themed labels make mail from you stand out from the stack, so birthday VIPs will see it right away. Your address or message encircles the colorful birthday message. What a fun way to be part of the celebration - no matter where you are!Self-stick labels affix easily to the upper left of your envelopes or do double-duty on the back as envelope seals. Set includes 144 personalized labels, each 1-1/2" across. But, not just for return addresses! You can choose to have your labels printed with birthday wishes and use them for decorating plain napkins, cups, banners, place cards, and such for the party!Specify 3 lines of personalization, up to 30 characters.