The bristle brush inspired by dentists, this applicator bends close to tip for improved control and ease of reach. The UltraBrush brand brings you the UltraBrush 1.0 and the UltraBrush 2.0 bristle brushes. The 2.0 with 200 chemical-resistant fibers is designed for better smoothing and spreading action. The 1.0 features 100 chemical-resistant fibers for more precise applications.