NEWBORN GIFT SET: This baby feeding gift set includes 3 pcs PP 5Oz baby bottles with with S nipple , 1 pc bottle spong brush, 1 pc nipple brush. RESEARCH ON BABY'S SUCKING BEHAVIOR: It is based on research on the 3 natural movements that a baby does while feeding in Japan. SOFT AND FLEXIBLE SILICONE NIPPLE: For seamless switch between breast and bottle. It’s super soft and flexible to allow for natural and smooth tongue movement. Latch-on Line: The new design with latching curve of the nipple is guiding for baby’s appropriate latch, so as to achieve effective adsorption. EASY TO USE: The new bottle shape features with wide neck and curved body, which is easy to clean and hold.