Model.AT-820Stainless steel and glass stairMaterial: 304# /201# stainless steelthe main part of the stair:It is made of 2pcs 6mm stainless steel platethe broadstep: 12+1+12mm millmetres laminated glassThe baluster:made of 2pcs 6mm stainless steel plate,also canmakeas per customer’s request