How to change the item box to show all info

I am a newbie with respect to css, so dont take my word for it. I may be wrong completely with my suggestion as well.
In your site there is this css (https://nmdbearings.com/wp-content/themes/crafty-cart/wpsc-default.css?ver=3.8.7.6.2.494864) file which has a the code that reads .default_product_display below which there is the height attribute set to 122px, try changing that number to 100px or so and see if it solves your problem.

Again before trying anything i suggested, please take a back up of your WP site.

You can right-click in the browser (Mozilla), select inspect element and select inspector and then select element with mouse. seen on the right in the rules