Plastic periodontal probe with a unique Click-System occuring always at a pression of ca. 20-25g (corresponding to 0.2-0.25N). This unique periodontal probe permits operator-independent reproducible and precise periodontal pocket measurements, avoiding tissue lesions at the end of the pocket thanks to the clearly perceptible Click. Indicated also for Implants. Autoclavable at 134°C, at least 3 min.