This is a tea matchbook.  My sister shared this idea with me and I have used the matchbook idea for baby shower favors and for Christmas craft sales.  People bought them to put in Christmas stockings or to include in a card.  For Christmas craft sales last November I made them 4" wide to fit a hot chocolate mix package or hot apple cider mix package.  They were also big sellers for gift giving!  This particular matchbook was made for a co-worker who was dealing with allergies.  It is 3" wide.