Heavyweight Blank White 5" X 7" Cards with Envelopes - 40 Cards & Envelopes (40 Cards & Envelopes) Flat Cards (non-folding) are great for making Invitations, Announcements, Photos, Postcards, and much More. Cards are made from a Heavyweight 80lb Cover White Cardstock (216gsm, 98 brightness) Envelopes are A7 size (5 1/4" x 7 1/4") - Made from 70lb Text - Feature a Gummed Square Flap Cards & Envelopes are both Printable with your Inkjet or Laser Printer Available in sets of 40 or 100 Cards & Envelopes