Fontanot Arkè Civik Zink stair kits have metal parts protected by a galvanization process, whose finish makes them ideal for outdoor use. The handrail of this zink spiral is in black pvc. The fixings are in stainless steel, to be more resistant to harsh environments. Civik Zink is easy to assemble and adjustable in height by buying supplementary articles; it can reach 376 cm in height.