Hi,
If I understand properly, you need someone who can write and post a craigslist ad for your products.
I'm new on freelancer and looking for opportunities to grow my network and professional competence in content writing and looking forward to build a good professional relationship with you.
I would love to take this opportunity to write super cool descriptions of your products to sell.
My hourly rate would be USD 2. And, you can send me some specifications so I can quickly draft a sample for you to review my capabilities.
Thanks