Prefabricated spiral staircase of reinforced concrete clad in Brushed Egyptian Yellow Marble. The staircase has a modern style central column of stainless steel in a stair platform of dovetail shape, which gives elegance and sobriety. The light color helps to transform the self-supporting steps of the spiral staircase into design furniture of class. The railing and handrail made entirely of stainless steel have simple shapes, as well as the joints of the steps. The materials and finishes are of high quality and guarantee the durability.