In the video, there is a woman wearing a gray sweater who is holding a horse's mouth open with a tool. She is standing in a stable, and there are two other women standing next to her. One of the women is wearing a red coat and the other is wearing a black coat. The woman in the gray sweater is carefully examining the horse's teeth, while the other two women are watching her closely. The horse appears to be calm and cooperative during the examination. The stable is well-lit, and there are hay and other horse-related items visible in the background.