For every wedding's planning process, RSVP cards are an excellent way to determine the accurate number of attendees on that day. This information is useful so that you're caterers will know how much food to provide at the reception, as well as help you plan for seating arrangements.
Some of these rsvp cards come folded, and some are single panel, it's ultimately up to you. If you need to present different options to your guests, such as whether to serve chicken or beef at the reception, that's also possible. Those can be ordered separately or as part of the package.