An innovative package of KIt Kat that can dropped into any post office box. Simply write your message, stamp it, and mail it. Kit Kat Mail was available at post offices all across the country. At key locations, entire post offices were even decorated and converted into special Kit Kat Mail stores.

Overnight, Kit Kat became available in an additional, competition-free 20,000 locations. Expanding the brand experience beyond students, to their friends and families, the campaign received PR coverage totaling more than US$11 million in free media. With this success, Kit Kat Mail is now the first and only outside product to become a permanent offering in Japan Post outlets. And by making the post office part of the experience, the popularity of the campaign has spread beyond exam takers, with Kit Kat Mail being delivered for all occasions, across all demographics and to every corner of the globe.