The leading theme in the work by Studio Rolf.fr is the concept of symbiosis. In nature symbiosis manifests itself in many different ways. Varying from a harmonious co-existence to a form of parasitizing. In the case of Rolf.fr's work this is translated in the combining, mixing or intersecting of objects, elements and parts and by applying different materials and have them interact with each other visually and/or technically. Besides playing with contrasts, the fascination for bringing to surface the interior and the developing and manipulating of production processes play an important role in the design methodology as a whole. Although these technical processes in general come about in a rational manner they have to result in a (irrational) poetic power. Products don't only derive value and meaning from their usage and a practical point of view but also to a great extend from that poetic expressiveness. The design process is based on a logical and pragmatical development of the concept.