An instruction for something or an instruction manual is also a brochure, just not a promo.
And in the promo brochure they place a catalog, a list of products with a description, prices, promotions, conditions.
Fasteners for sheets can serve as:
- Bracket (inexpensive option)
- Hot glue (reliable)
- Spring (expensive, but beautiful)
You can distribute this type of printing at a fair, exhibition or presentation. You can also use mail. And you can hand it directly to the client, in person.