Iron stair with open riser.

Double load-bearing running structure outside steps made of steel.

Structure painted with  embossed glaze, light grey finish.

Cut beech solid wood tread,  light walnut finish.

Tread fixed to the structures with soldered steel wings and recessed teeth with no visible screws.

AIR6C banister: 5 satin-finish stainless steel rails, steel handrail, spindles with steel double plate.io