Gold polyester filament stands up in hot weather and resists wear. Use with all paints, latex and oil-based. Solid black plastic handle, brass-plated steel ferrule. Packaging has gold lettering to indicate synthetic filament. The Wooster Brush Company has been manufacturing innovative, high-performance painting products right out of Wooster, Ohio USA since 1851. You can feel confident knowing Wooster is the name behind your tools.