In the video, there are two alternators placed on a concrete surface. The alternator on the left is white and appears to be older, while the alternator on the right is silver and looks newer. Both alternators are cylindrical in shape with a central shaft and several protruding parts. The alternator on the right has a label with the word "ALTERNATOR" written on it. The video does not show any movement or action, and there are no other objects or people visible in the frame.