In the video, a person is seen holding a circular saw and using a tool to adjust the tension on the blade. The person is wearing a white shirt with a red and blue design on it. The circular saw has a black and red blade and is labeled "SKILSAW". The person's hands are visible as they work on the saw, and they appear to be experienced in handling the tool. The video provides a close-up view of the saw and the person's hands, allowing viewers to see the details of the adjustment process.