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. Benefits: Chemical resistant fibers hold up to the harshest dental materials, bends close to tip for improved control and ease of reach, patented "Stay Put Bending Portion" maintains the applicator's head at desired angle without rebound, 200 chemical-resistant fibers. Designed for better smoothing and spreading action. Refill cartridges: Quantity: 200 Applicators, Colors: 100 Green, 100 Yellow