In the video, a person is seen using a machine to grind a tire. The tire is placed on a wooden board, and the machine is being moved back and forth over the tire's surface. The person is wearing a black shirt and gloves, and the machine is making a lot of noise as it grinds the tire. The tire appears to be a standard car tire, and the wooden board is circular in shape. The person is using a lot of force to push the machine down onto the tire, and the tire is slowly becoming more worn down as the machine grinds it.