In the video, a person is using a heat gun to apply heat to a piece of cardboard. The cardboard is white on one side and brown on the other. The person is holding the heat gun with their right hand and moving it back and forth over the cardboard. The heat gun is emitting a blue light, indicating that it is hot. The person is wearing a black glove on their left hand, which is holding the cardboard steady. The background is a workshop with various tools and materials scattered around.