The video shows a man wearing a diving mask and holding a brick underwater. He is in a swimming pool and is seen walking underwater, holding the brick in his hands. The man then kneels down and looks at the brick before showing it to the camera. He appears to be examining the brick closely, possibly checking for any damage or markings. The water is clear and blue, and the man is wearing a black wetsuit. The brick is a standard rectangular shape with a rough texture.