This is a 4x6in printable postcard that you can print and send to customers via snail mail or place insdie welcome goody bags. You can also use it as a class invite. There are some intentional white spaces left for you to add your contact information or your own sticker. This postcard is all market friendly. There is one diffuser blend calling for Breathe blend and an Easy Air and Air variation is provided. Upon purchase you are provided a zip file with 4 image files and a video tutorial for printing on vistaprint.