What you’re selling. Start every ad by explaining what your item is.
Item’s condition. Briefly explain the condition of the item after the general description. Make a note of any damages, no matter how small. Honesty is your best policy here.
Technical specs. If you’re selling any electronic gadget, include the technical specs from the manufacturer’s website.
Price check. Use the description to remind readers about the price. While Craigslist has a separate section for pricing, it’s a good idea to include it in the ad as well. Be sure to include whether you’re willing to take the best offer.
Your contact information. Add your preferred method of contact at the bottom of your ad. For example, if you prefer to have buyers email you, include a note asking anyone to email the address given on the ad for questions or to make an offer on the item. If you don’t mind phone calls, include your cell phone or home number as well.