This is extremely important. The flow of your brush is what will give you those brush strokes. And, it is also important that your brush be soft so you do not ruin your fondant. Most importantly, you must have good quality paint brushes that will not have the bristles(hair) falling off. In addition, you want to ensure your brushes are not used for anything other than food. So they are food safe. And, you want to ensure your brushes are soft bristles as the fondant is soft so you will be working on a soft canvas.