The 1.5” (37mm) angled paint brush is a professional polyester/nylon brush for use with all paints for both interior and exterior painting. The filament blend is formulated to help you trim and cut-in faster and easier. It’s designed to release paint evenly and smoothly while maintaining stability and control while cutting-in. Filaments are processed to help you achieve a smooth, no streak finish. This angular brush size is best suited for windows and smaller trim such as shutters, mouldings, baseboards and smaller furniture.