In the video, a person is seen holding a pink rubber band and stretching it over a glass container filled with water. The person then places their fingers on the rubber band and pulls it back and forth, creating a wave-like motion. The water in the container ripples in response to the movement of the rubber band. The person continues to stretch and release the rubber band, demonstrating the elasticity and flexibility of the material. The video captures the interaction between the rubber band and the water, showcasing the physical properties of both materials.