In the video, a man is seen lying on the floor, holding a weight in his hands. He then proceeds to do sit-ups while holding the weight. The man is wearing a blue shirt and black pants. The weight he is holding appears to be a dumbbell. The floor is concrete and there is a window in the background. The man is performing the exercise with good form, keeping his back straight and engaging his core muscles. The lighting in the room is natural, coming from the window.