The Concave flame bowl from Mono was designed by Franz Maurer in 2004 for the German manufacturer Mono. A single small flame appears to float above the delicate, matt-brushed stainless steel bowl. The reflection of the "magical" flame plunges the whole room into a soft, luminous light for cozy evenings alone, with a special somebody or with guests. The flame is fed by lamp oil, which is inside of the bowl.
The paraffin lamp oil suitable for Convex as Concave is available here.