sit/stand desk converter (Broadway, Fleetwood)

This unit allows you to convert a normal sitting desk to a standing desk for computer use. It stand on top of a normal desk. It works well but, because I need two screens I can't use it. The pics show it in the raised and lowered positions. It comes with the assembly instructions (really simple - it is virtually fully assembled). It probably about 15kg in weight, and can easily be carried by one person. You'd need a large boot or fold down seats to take it.