hi you just give the heading not brief description of the heading.
if you provide the full detail content/text and also mention the file size?

Hi, Can you please provide us the exact text/content that will be on the flyer/brochure? What size flyer do you need? (single/double-sided) or you need a multi-page brochure?
Thank you, Best Regards Alex

I would want a multi page brochure to leave with clients.

Hi, Can you please provide us the exact text/content that will be on the brochure? Best regards,
Alex