High quality material :Kitten nipples is made of food grade silicone material.There is no strange chemical odor when feeding the pacifier to the kitten. Durable and sturdy, soft and gentle. The nipple opening is very small. Liquid food will flow smoothly. Kitten feeding syring : The pacifier mimics the shape of a mother's pacifier and is designed by a professional veterinarian. This is a natural feeding behavior that can be used by pets of all ages from birth. There are various sizes of silicone nipples and syringes available for breeders to choose the most accurate nipple size to feed your little pet.Reusable kitten feeding syringe:Kittens or other pets who are used to their mother accept the pacifier more easily and will not cause oral irritation like plastic pacifiers.The syringe can accurately measure the amount of milk sucked.Kitten bottle nipples are washable and reusable,A must have for feeding small mammals.Widely Applicable: Kitten bottle feeding kit is suitable for kittens and puppies that mom can't feed. Can be used by pets from birth to all ages. Also, it can be used on all mammals such as mice, rabbits, squirrels. This thin, flexible nipple is easier to suck on than typical designs in pet stores.