Safe silicone material: suitable for puppies, kittens and newborn rabbits with teats. Innovative feeding device: the feeder mimics the pet nipple, with four independent nipples of different sizes, allowing you to fully enjoy the nature of independent breastfeeding Cover: not afraid of mosquitoes , to bring bacteria, shell body design, the baby’s sucking is not clogged, to close the blanket, can prevent mosquito bacteria interference, isolation effect.Instructions: When using this feeder for the first time, guide the puppy into the nipple . When the puppy can bite the nipple, it will slowly drink by itself. Scientific Design: The feeder is a breast type with a capacity of 180ml. Different sizes of teats are suitable for puppies of different ages, and the lid helps to reduce air pressure and that to prevent milk leakage.