Our water and food dispensers are made of food-grade plastic, non-toxic and odorless. Durable plastic dispenser for dry food, kibble, or water for cats and dogs. Ideal for ensuring your pet has food and water during short absences. Large 3.8-liter capacity (2 dispensers), can last approximately 7 days for small pets and 3 days for large pets. The barrel and base are detachable and can be rinsed directly with water. We recommend washing them once a week. If you have any problems with your purchase, please feel free to contact us. You will receive a prompt and thoughtful refund.