Here is a description of the video: The video shows a man wearing boxing gloves, a gray t-shirt, and gray shorts standing on a blue balance ball in what appears to be a gym. He is barefoot. He is throwing punches at a black and yellow punching bag that hangs to his left. Other people are visible in the background, some of whom are exercising. There are multiple punching bags in the gym. The floor is covered in black, interlocking mats. The ceiling has exposed ductwork. The lighting is bright.