In the video, a person is seen using a machine to sharpen a knife. The machine appears to be a belt sander, which is commonly used for sharpening tools. The person is holding the knife against the moving belt of the sander, carefully guiding it to ensure an even sharpening. The belt sander is green and black in color, and the knife has a silver blade with a black handle. The person's hands are visible, and they are wearing a white shirt. The background is not clearly visible, but it seems to be a workshop or garage setting.