A "short blurb" refers to a brief and concise description or summary of something, typically written to provide a quick overview or promote interest in a topic or product. Full definition
Usually a very short blurb about a issue with a car. (humblemechanic.com)
Briefly talk about the positions held, and write short blurbs about your accomplishments. (theladders.com)
It clearly communicates this by printing short blurbs on its products» packaging that explain how these items specifically relate to its mission statement. (entrepreneur.com)