In the video, a person is seen using a wrench to tighten a bolt on a piece of machinery. The person is wearing a red glove on their left hand and is using the wrench with their right hand. The machinery appears to be made of metal and has a cylindrical shape. The bolt being tightened is located on the side of the machinery. The person is applying force to the wrench, indicating that they are tightening the bolt. The background is not clearly visible, but it appears to be an industrial or workshop setting.