Key Features & Benefits 1. The POTATO Trainer Sippy Cup comes complete with a teat to support the transition from bottle or breast to sippy cup drinking. The familiar element of the bottle teat will help encourage baby to start holding their own sippy cup. 2. Smooth Transition: The bottle also comes with a soft silicone spout which helps your baby progress onto a new drinking action. The soft spout is gentle on little gums and encourages baby to move from sucking to sipping and learn to change the angle of the drinking cup. 3. Food Grade Silicone Nipple: The nipple is made of super soft and flexible silicone,and the same shape as mom's nursing nipple for a familiar fit. Matte surface enables the baby to get a secure and continuous latch. 4. Sterilizable: The bottle is detachable and can be sterilized by steam, ultraviolet or boiled water. Read more Safe Material PPSU (Polyphenylsulfone) is a type of high performance polymer. It is a plastic but has the benefits of glass which is a perfect material for baby bottles. It is incredibly durable, temperature and fall resistant. Which does not absorb odor or color and you can sterilize without any deformation. Designed for tiny hands Little and lightweight with easy-grip handles, this is the perfect cup for beginners. As drinking skills develop, simply remove the handles and you’re halfway to a grown-up cup. Precise scale Accurate measurement, scale interval 30ml, let mom master the scientific drinking quantity all the time. 360 Weighted Straw The 360 Weighted Straw follows the liquid allowing your child to drink in any position, including upright. Read more More about the baby bootle and spout PPSU Material, Break-resistant As proved in drop tests, the bottle is light and does not shatter when dropped. It is quite portable. SMOOTH TRANSITION 8-ounce baby bottle with a medium flow nipple designed for infants 3-6 months, comes with a soft learner sippy cup spout, to transition from breast or bottle to cup-drinking. UNIQUE DESIGN The ergonomic design makes this bottle comfortable for both parents and babies to hold, which brings a good mood to mothers and babies. And the rotating handle is perfect to protect the child's wrist and can help baby control drinking. Sepcification Material: PPSU Size: 8oz/ 240ml Color: Pink/Green/Blue Nipple flow: Medium flow The 8oz bottle comes with a medium flow nipple , suitable for babies from 3 to 6 months. With a sippy cup spout, to transition from breast or bottle to cup-drinking. Read more