These high quality thank you cards are printed on heavyweight matte card stock paper and come with mailing envelopes made out of superior paper. The cards are post card style (non-folding) and come in an adorable woodland design that your guests will absolutely love. There are 30 cards in total with 30 accompanying white envelopes all measuring 5×7 inches (A7 format). They are single-sided and can be written on with pencil or pen without smearing. Not only do they come in rich vibrant colors but they are thick, making them more durable! Copyrighted design registered by Papery Pop.