Multiple Use Freight Car

This Lego train freight car has many uses and is compatible with most Lego trains. It can fit small Lego cargo. It has a convenient sliding door can go smoothly along the rails. This can be used to carry small Lego cargo and many other things that can can fit in it. I think this would be a good Lego product because I have done some research and there isn't any think like this on the Lego market. This creation would be good for people who are in  possession of a Lego train. I think that it would do good in a poly bag for buyers who want something cheap.