I believe they used our ultrasmooth white medium envelopes (4 3/
by (5 3/4). If you fold them in half, they are just the right size for a gift card. Of course, the idea can be used for any size envelope. In our conference book there was a little chart about how much money you could make in a year if you upsold envelopes to your customers. If you sold 6 per workshop/4workshops per month that makes $342.72 more in instant income in a year!