Wooster have developed a new option with firmer filaments. Gold Edge™ paintbrushes are made with an exclusive formula of chemically tipped  polyester. This filament is very soft and fine to virtually eliminate brushmarks, yet it has added stiffness to push paint farther on the surface and provide control for sharp, single-pass cuts. Excellent for all paints and enamels, Gold Edge brushes offer semi-professional results at a great price.