stair(staircase) 1)Materail:tempered glass and steel 2)Color:according to customer's needs 3)Installment:very simple,can be installed by yourself and didn'tneed professianl workers. 4)There are can be taken over 500kg by per tread,the stair be designed by professional designers and be tested in the long periods,it's very safe.It's populated in North America and Europe. 5)The size of tread:length,0-1500mm.width,0-1000mm. thickness,0-50mm. 6)The normal specification of tread:900mm*30mm*40mm, the quantity of tread is 13,applicable to floor height within 3000mm.The price of FOB Shanghai is USD1300