Edge Espresso Cup w. handle - 4 pcs.Edge is a handmade series of high quality stoneware. Each piece features the unique contour along the edges, creating a simple and airy feel for the series, while making the pieces stackable, enabling you to use the plates as lids on top of the bowls. The durability and strength are achieved through firing at higher temperatures, earning this type of stoneware the name 'iron porcelain.