In the video, a person is seen demonstrating the pedal and chain mechanism of an electric bike. The bike has a black frame with yellow rims on the wheels. The person's hand is visible as they manipulate the pedal and chain, showing how the bike operates. The video provides a close-up view of the bike's pedal and chain, allowing viewers to see the details of the mechanism. The person's hand movements are deliberate and precise, indicating a clear understanding of how the bike works. The video does not contain any spoken words or text overlays, focusing solely on the visual demonstration of the bike's operation.