Helical indoor staircase, made of reinforced concrete clad in wood. The staircase is made in a modern style and has a piano-shaped stair platform. The light color of the cantilevered steps with the brown floor helps to turn this helical staircase into a design element. The railing and handrail have simple shapes and are made entirely of stainless steel. The wood and facings are carefully made _to ensure durability.