Iron open stair with open riser.

Double load-bearing structure outside steps made of steel.

Structure painted with micaceous iron glaze,  609.0400 finish, light grey.

Steps  with steel frame.

Layered glass tread , transparent extra light finish.

Tread fixed with no visible screws.

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