This applicator brush is pencil-shaped with 0.008" Nylon bristle and an acetal plastic handle. This high-quality brush has a 1/2" trim, a brush face diameter of 1/4" and a handle length of 4-1/2" x 1/4" wide. For use in situations where you need a round brush to clean fine areas. Works well for applying fluids. Made with FDA and RoHS compliant materials.