PVC plastic is an environmentally friendly material, non-toxic and odorless. The bottle holder is stable and does not shake, which allows you to keep it away and to change the water easily. The triangular food container is cute and convenient for putting or changing food. The bottom vacuum can be placed; on the water bottle or the cage. 3 in 1 Hamster dispenser, has three hamster functions: drink water from the water bottle, eat the food in the feeder, and rest in the small niche.