Flexispot Monitor-Stand Workstation
Desks
Standing Desk Converter

It takes little effort to change between sitting and standing work modes with just a light squeeze of the hand bars, which help you maintain a comfortable working position ergonomically. No matter standing up or sitting down, it would save valuable space by rises and lowers the converter vertically.

https://flexispot.com/

https://www.youtube.com/watch?v=fhdL1fSiQJk