The synthetic bristles are easy to clean after use and are durable enough to re-use time and time again. The pack contains three different sizes ideal for edging and trim work. These brushes are suitable for use with all types of paint. They feature synthetic bristles, making them easy to clean. The set is ideal for women and men who want to achieve a professional finish. Synthetic bristles are also great for those who want to minimize waste and reduce their environmental impact.