1. Washable and The nipple puppy feeder is washable and high temperature so you can wash them with boiling water 1 2 times a week and keep them regularly. 2. Lifting nipple puppy feeder: With ingenious lifting this nipple puppy feeder allows you to adjust the height of the bottle according to the size of your pet. The five milk replacer is suitable for every pet's feeding and breastfeeding. 3. Easy Feeding: The nipple puppy feeder has a moderate nipple size that fits most pet puppies and imitates the breast shape to prevent milk from flowing out. The lid reduces air pressure and ensures a smooth feeding. 4. Simple to nourish: This nipple puppy feeder is designed to help you feed your born or sick pets with ease. Simply fill the bottle with milk, make sure it's feeding time, and gently guide the nipple into your pet's mouth. It will gradually suck the milk and get the nutrition it needs. If it doesn't feed at first, try 2 3 times and please be patient. When it tastes milk, it will love this feeder.