In the video, a person is seen holding a black box in their hand. The box appears to be made of metal and has a handle on the top. The person is standing next to a bicycle, which is parked on the side of the road. The bicycle has a black frame and is equipped with a basket on the front. The person then proceeds to attach the box to the back of the bicycle using a black strap. The strap is secured around the bicycle's frame and the box, ensuring that it stays in place while the person rides the bicycle. The video provides a clear view of the process of attaching the box to the bicycle, and the person seems to be demonstrating how to do it.