The video shows a close-up of a bicycle's rear wheel, with a focus on the brake mechanism. The brake is attached to the wheel and is being adjusted by a person's hand. The hand is seen turning a screw on the brake, which is likely to be adjusting the tension or position of the brake. The video is shot in a vertical format, and the background is blurred, but it appears to be an outdoor setting. The bicycle's wheel is silver, and the brake is black. There is no visible title, subtitle, or informative text in the video.