In the video, a person is seen using a tool to sharpen a knife. The tool is made of wood and has a hole in the center. The person holds the knife in one hand and the tool in the other, and runs the knife along the edge of the tool, sharpening it. The knife has a serrated edge and the person moves it back and forth along the tool, ensuring that the entire edge is sharpened. The background is blurred, but it appears to be an outdoor setting.