A family of Microsoft word processing software products for creating web, email, and print documents.
The WingDings 2 font contains both filled and empty circles (the same size) at characters 152 and 153. You can insert these from the Symbol dialog, and, if you will be using them frequently, you can assign keyboard shortcuts to them. If they are not as large as you would like when you insert them at the same size as the rest of your text, you can increase the font size.