Strathmore STR-105-20 Canvas Announcement Cards (10 Pack) Made from heavy weight canvas textured paper\ Subtle canvas textured surface is ideal for oil, acrylic and gouache Small card is ideally suited for formal announcements, gifting enclosures, invitations, change of address and thank you notes Announcement Size matching envelopes are 3.625" x 5.125" Meets domestic size requirements for US 1st Class Mail