Link Services to Custom URL

Hello,

On my home page, I have a carousel that lists my services and then creates a the featured image. When you click on it, it takes you to the page about that service. I want to be able to make it so that when you click on it, it can go to a custom URL.

The code I’m using now:
[posts_carousel heading="Shop by Brand" post_type="services" order_by="order" order="ASC" limit="10" meta="no" excerpt="yes" excerpt_char_limit="72" exclude_current="no" width="four columns" scroll_by="3"]