What to ask from Influencer when giving a free product?

Hi

I work at a company that makes craft tools like laser cutters and 3D printers. We’re collaborating with a school. They get our most expensive laser cutter for free and we receive a lot of promotion and leads.

My question is the following:

How do I make a document that includes specifics like what we expect + date + more important information? Where can I find a template or examples?

I don’t know how to Google this, everything about sponsorships on Google is about how to approach companies to get sponsored and not the other way around.

​

Sorry for weird grammar, English isn’t my native language.