Mail carrier thank you cards to give to your customers around Christmas time. Give a note card to say thank you for a gift received from someone on your route. Postcards measure 4.25x6 inches 20 postcards per pack. Backside says "Thank you for thinking of me. Your kind expression is very much appreciated. Wishing you warm greetings of the Christmas Season and good wishes for a happy and healthy New Year. Your mail carrier,___________"