1. Log in to CS.MONEY through your Steam account;
2. Click the Sell button on the sidebar:
3. Add your items to the Sell list and set a price for them:
4. Click the "Put up for sale" button:
5. Done, item is for sale!
Selling commission may differ on the Market. If you put up for sale an item that is priced more than $1000, the commission will be 3%, if less than $1000 - 5%.