The video shows a close-up of a person's hands holding a knife. The person is using their thumb to push down on a button on the handle of the knife, which causes the blade to fold inward. The person then uses their index finger to push down on another button on the handle, which causes the blade to extend outward. The person repeats this action several times, demonstrating the functionality of the knife. The knife appears to be made of metal and has a textured handle for grip. The background is blurred, but it seems to be a dark surface.