Purdy's XL™ Series is the most versatile brush series, designed for use with all paints and stains. The XL™ Series has a distinctive copper ferrule with the right blend of DuPont® solid, round and tapered Tynex® and Orel® filaments for brushes that perform no matter what the job. Not only are the XL™ brushes ideal for interior and exterior projects with all types of paints, they also work great in all types of environments.