We purchased the card and the envelope and were surprised that the card was 1.1 ounces. It required .62 cents in postage instead of .49. That difference adds up when you are mailing 4,000 cards. I even took the card to the post office to make sure our scale wasn't too sensitive and they came up with the same weight. I called cards direct when I found out, but they said all their cards are supposed to be less than an ounce unless otherwise noted but that wasn't the case with this order.