If you are new to decorating Royal Icing Cookies, this is a great "no-bake" beginner's tutorial on how to flood cookies using Keebler Sandies Shortbread Cookies and then decorate using IOD Decor Stamps. the IOD Knob Toppers stamp has 62 designs that are between 1.25" to 1.5" in diameter, making this stamp the perfect choice for decorating 2" round royal icing cookies.