1. Assuming you haven't yet signed up, go to eBay's Main Pageand then click on register at the very top of the page to create an eBay account.
2. Once you've signed up, you'll want to log in and go to Sell either in My eBay or on the Main Page at the top.
3. After picking a category you'll then be asked to enter the title and description. Be VERY detailed about your product, and include a picture unless it is impossible. Not including one will deter some buyers from your item.
4. Continue to go through the options, and be sure to look everything over very carefully. There's a lot to look through and you'll want to make sure everything is correct.
5. Be sure that when you're done with everything at the end (you're at the overview page) to double check and press submit. If you don't press submit it won't be entered. You'll then get an e-mail confirming that your product was placed on eBay.
6. Once the item has been shipped, and they have left feedback for you, you should leave feedback for that person.