Kordon Oasis vita drops for hamster adds a consistent source of nutritional supplements. Feature supplements the pet"s dry diet to assure proper nutrition. Includes eye-dropper dispenser and detailed instructions. A fresh dose in the water bottle daily helps to keep hamster happy and healthy. Oasis Vita-Drops for hamsters, mice, rats, gerbils and similar pets contains all known essential vitamins as listed in the latest recommendations of the Committee on Animal Nutrition of the National Research Council. This product weighs 2-ounce.