Point out our product different with other seller 1 Material : Made of precision casting stainless steel 304 ,not rust. 2 Weight capacity : 200KG(450lb) ,other product may only 120KG(260lb) . 3 Track rail : The thickness of our steel in the rail is 2.5mm . other seller may only 2.0mm . 4 Safety : There is a prevent-axis on each roller to keep the doors from jumping off the rail 5 Roller: There are two bearings inside roller other poor quality product may has only one bearing inside it, so it will work wear and muted . and durable over time.
