Professional teeth cleaning made easy: thanks to the practical and easy-to-use interdental brushes from Curaprox. These interdental brushes gently and effectively clean all interdental spaces - available in five sizes and five colors. They also serve excellently as braces cleaners. This is a practical refill pack containing 8 CPS 09 size interdental brushes for attachment. Please note: this refill pack does not include a holder. The brush is yellow, has a 4 mm effectiveness, and a 0.9 mm diameter. The CPS prime 09 is therefore the second largest of the five prime brushes. The new replacement head easily clicks onto the existing holder. The refill pack is environmentally friendly and reduces waste. The CPS prime brushes were developed and manufactured in Switzerland.