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. Upon purchase you are provided a zip file with 2 image files and a video tutorial for printing on vistaprint. This works great with the Master your Metabolism 10 day Challenge and or the Master your Metabolism Class Template. Postcard is friendly for all markets. A Smart & Sassy alternative is also offered in the download.