The video shows a person's hand adjusting the seat of a bike. The person's hand is visible in the frame, and they are using their fingers to turn a knob on the bike seat. The bike seat is black, and the handlebars of the bike are also visible in the frame. The background of the video is a blurred image of a street with buildings and trees. The person's hand is moving in a circular motion, and the knob on the seat is being turned clockwise. The video is shot in daylight, and the colors are natural and vibrant.