We are the manufacture for the Block step, Slabs, Slate, with the high quality and the cheapest ... price. We are the manufacture f or the Block step, Slabs, Slate, with the high quality and the cheapest ... price. Available sizes: Steps&Stairs -110-160 x 32/33 x 2/3cm ,Risers: 110-160 x 14/15 x 2cmThickness ...