Outdoor beige marble stair tread 1.China origin 2.Good quality good price 3.Custom size 4.Factory since 1985 Part One: Product Info. Product namestairsMaterialGranite , Marble , Basalt, Travertine, SlateColorGrey , Black , Brown , Blue , Green , Red ,Pink, Yellow , White etcSizes110-150 X 30-33 X 2/3cm , other custom size is availablePatternSpiral, Circular, Straight, ArcFinish Polished and Honed ...