Display product images larger

Hi I am trying to get a larger image of my product to show up. I tried changing the DIV options in the product module but this does not seem to change anything. See my image below for the page and the configuration.

Thanks all!

That can be changed in the "Files" tab of the configuration.

Nicholas,

If i change that in the files tab of configuration, then how does the "product list" menu options affect the image?

I guess i am confused because there are multiple places where images size can be set, i do not know which one takes effect. Thanks!

The menu options do not affect the product page image size.
The menu is a product listing. The image size options affect the size of the images on the listing of course. It's as simple as that.

Ah Thanks Nicholas, I am new to Joomla so still learning some of the inner workings of menus and modules. Please bear with me for the noob questions.