We are the manufacture for the Stair step , Crystal stones, Step stair, with the high quality and the cheapest price. We ... are the manufacture for the Stair step , Crystal stones, Step stair, with the high quality and the cheapest price. ... 5cm-15cmFinishes: Top polished, with edges bevelled and polished, some top surface with anti-slip line, with flamed&bushhammered&sandblasted processing, ...