In the video, a person is holding a small metal object with a red rubber ring on one end. The person is standing in front of a sink, and they are holding the object up to the faucet. The person then places the object into the faucet, and water starts to flow out of the other end of the object. The person then removes the object from the faucet, and the water stops flowing. The person then places the object back into the faucet, and the water starts to flow again. The person repeats this process several times, showing how the object can be used to control the flow of water from the faucet.