In this audio, the sound of a plastic pen is distinctly heard tapping rhythmically on a hard stone surface. The pen's material reverberates distinctly with each tap, creating a unique sound synonymous with plastic. The stone's hardness further punctuates this sound, creating a distinct contrast between the two objects. The ticking is continuous, almost like a metronome, and has been recorded using a Zoom H1, which amplifies the crispness and clarity of the sound. The audio gives the listeners an impression of being in close proximity to the action, almost as if they're zooming in on the pen tapping against the rock. Through this audio, one can appreciate the different textures of the plastic pen and the rock and how they interact with each other to create a unique, rhythmic sound.