The video shows a group of pet mice in a glass enclosure. The enclosure is filled with wood shavings and contains a wooden exercise wheel. There are at least five mice visible, including white, grey, and black ones. Some of the mice are inside the exercise wheel, while others are on the bedding. There are also some wooden blocks and a yellow ball in the enclosure. The camera appears to be positioned just outside the glass enclosure, looking in. The lighting is bright, suggesting an indoor setting.