Swiss wood: the walnut as well as the ash tree wood with its beautiful wood structure are both from a wood turnery in Emmental (swiss wood, FSC-certified). To make the wood durable it is infiltrated with a 100% acryl to get stabilized - this under vacuum and pressure. This procedure also changes the color of the wood. This technology is based on the latest research results from development projects together with the University of Applied Sciences in Biel.