Design your own greeting cards, party invitations, wedding birth announcements and more on elegant cards made from Strathmore paper. Use calligraphy, lithography, silk-screening, watercolor, colored pencils, pens, charcoal, rubber stamping, collages and more. The announcement size cards measure 3.5" x 4.875" and include 3.625" x 5.125" envelopes. The full size cards measure 5" x 6.875" and include 5.25" x 7.25" envelopes. The slim size cards measure 3.875" x 9" and include 9.5" x 4.125" envelopes.