Nice4 - Winder staircase for small spaces adjustable in rise, going and rotation. The structure is made up of painted steel supports. The treads are in 35mm-thick birch plywood assembled to each other with bolts. The railing is made up of vertical balusters in the same colour as the structure and fastened to the treads, and a square-base handrail in solid beech in the same shade as the treads. The wooden treads and handrail are painted using water-based products subjected to a UV light catalysis process, the ultimate expression of paint technology.