I am selling my standing desk converter with standing pad.
No issues with it, just don't use it much any more.
This goes on top of an existing desk, it easily lowers and raises with a hydraulic mechanism and locks in place. It raises 19". I'm 6'2" and it is a good height for me.
The main part of the desk is 33" wide and 17" deep, with the lower keyboard shelf, totals 24" deep.
It has predrilled hole for a monitor stand or use a clip on off the back edge (monitors and stand not included) . It supports 2 monitors.