What are the dimensions of this image element?

Greetings! I was wondering if there was a way to get the dimensions of the image elements in the screenshot? I'd like to fit the images exactly so there is no pixelation or distortion. The url where you can find them is lucidallusion.tamanasprings.com, they are on the homepage.

Support access is granted as well, feel free to get on and take a look.

Much Love
Ciro Bey