In this video I scratch with my long natural nails a giant stone on a sea beach. You can hear the sound of nails scratching and tapping on a stone, as well as the sound of sea waves beating against the shore. You should buy this video, because by shooting it I lost a few millimeters of the length of my sharp nails, this can be seen towards the end of the video. But now I am know that if I do not have a nail file, I can always correct them with this stone.