You are free to sell that product for any price and are royalty free so you keep all the money yourself. These products come with pre written sales pages, product images and even thank you pages. They usually have a suggested retail price is listed. Sometimes they may have required minimum retail prices or certain things you aren't allowed to do such as bundling them or giving them away for free without permission. Most of the time you are allowed to give them to your customers and members if they paid for something such as another product or a membership fee.