I bought this folding iPad stand made by Arkon. (I used it to display a custom keyboard on a shelf). It cost $14 at the time.

https://www.amazon.com/dp/B000CKVOOY/

Later, I needed a second one (for another keyboard). I saw this Amazon Basics folding iPad stand that looked remarkably similar but for a few dollars less:

https://www.amazon.com/dp/B006ZT4VA0/

Out of curiosity, I bought the Amazon Basics one and compared it side by side with the one by Arkon. They are exactly the same!