JAM Paper & Envelope's Blank Thank You Card Sets are a great way send Thank You messages to friends and family all year long! They are also great to have on hand when you get some help or a gift!! These cards are made from smooth 65 lb. cardstock and come with matching envelopes. Our Thank You cards are available in multiple designs, and are blank on the inside with adequate space to write your own personal messages! So add some personal flair to your next Thank You card with JAM Paper's Blank Thank You Card Sets! All packs come with 25 blank (on the inside) cards and 25 matching envelopes. Thank you cards with simple gold damask theme. Size: 5. 6" x 7. 9" card. 25 cards and envelopes per pack. Size: 5. 6 x 7. 9 inch Card. JAM Paper Thank You Cards allow you to say thanks in your own way!.