Kitten and Puppy Bionic Automatic Feeding Bottle Bubble Milk BowlProduct information: Material: Silicone Specification: S 150ML, 350ML Color: White Features: The bubble milk bowl is a mature product after more than a year of trial and error. Whether it is the shape of the nipple, the size and length of the nipple, the nipple outlet, the height of the nipple, the size of the breast, and the internal mechanism, all are the result of hundreds of repeated experiments, so don't look at how the bubble milk bowl looks.