In the video, a man is standing in a gym and flexing his bicep muscle. He is wearing a white t-shirt and has a muscular build. The gym is equipped with various exercise machines and weights. The man is holding his arm at different angles to show off his bicep muscle. He appears to be confident and is smiling while flexing his arm. The lighting in the gym is bright, and the walls are painted blue. There are no other people visible in the video.