150 Blank Greeting Cards & Envelopes 5x7 A7 White ( Package may vary  ) 150 Blank Greeting Cards & Envelopes Save money by making your own Invitations, Announcements, etc. 100% acid-free and archival safe and are perfect for embossing, calligraphy, drawing and stamping. Cards are 5"x7" in size, 75 lb cardstock (110 gsm), Smooth texture, straight edges. Envelopes are 5-1/4" x 7-1/4" overall, 45 lb weight, (70 gsm), square flaps.