"Flat Pane/ Rectangular shaped with arched top. Our most popular Lithophane product is the plug-in night-light. First invented in France in 1827, a Lithophane is a porcelain engraving that virtually comes alive when illuminated from behind! A panel of different thickness of translucent, kiln-fired porcelain creates the image. A breathtakingly detailed picture in warm sepia tones emerges when lit. These illuminated artworks are so detailed, that they will amaze you for years to come. Our Night Lights are the perfect gift; reasonably priced & nicely gift boxed, including history and care literature. Our exclusive clip mounting allows our Night Lights to be plugged into any electrical outlet, including outlets that are installed sideways or upside down. Approx. size 3.25 inches x 4 inches. UL Listed"