This is a set of 3 Uru-themed postcards.
Each postcard measures 153mm x 102mm and has a glossy print on the front. The back of each card has a single sentence related to the age in question, as well as all the legal text. Each card has the CD-ROM logo, despite the fact that Uru launched on DVD-ROM instead.
The Relto card is the only card printed in portrait rather than landscape, and is the only card to feature artwork instead of a screenshot. The artwork depicted is the same Relto painting used as the game's main cover art.
The Gahreesen screenshot also appears on the back of the Uru boxed release.
The Teledahn screenshot also appears inside the trifold of the Uru boxed release. However, this time it's been cropped differently, making a female avatar visible on the bottom right.
It's unknown if there were any other postcards in this set.