One aspect of the design that is difficult to illustrate here is the variety of carriers, i.e. the different types of paper. The 50-gram invitation card is printed on a darker eco-friendly cardstock than the invitation cards for the exhibition openings. For the leporellos, on the other hand, we have chosen a standard eco-friendly paper. This is, of course, thinner and more noisy, whilst the invitation cards feel soft and pleasantly heavy in the hand.