Will this fit MX switches?

So I came across this ebay item and it kind of looks like it would fit MX switches but also might not.

Seller says the cutouts are 13.9x13.9mm, +0.1-0.0mm and it's only 1mm thick so my gut feeling is that it would be slightly too small and thin. However, it would be cool to know if anyone had any first hand experience with this product or seller wonderco_buy

I'm looking for some kind of "already made" metal switch plates (ortho) for a custom hard wire job I want to do, so if there are any other suggestions, please let me know.