The video shows a small white and brown rodent with a long tail running on a wheel inside a cage. The cage has white bars and a green wheel. The rodent is running continuously on the wheel, and its fur appears to be fluffy. The wheel is spinning at a moderate speed, and the rodent seems to be enjoying the exercise. The cage is placed on a surface that is not visible in the video. The background is blurred, but it appears to be an indoor setting.