A blogger media kit is similar to your resume. You want to be able to properly sell your blog to others and that can be achieved through a media kit.
The media kit for influencers will often include items such as a blog summary, statistics, ad rates, demographics, contact information, and more.
You decide what to include just as you would any offline resume.
Find one that fits your style, add your own graphics and content, and send it off to brands for a more professional look.