Product Description The Learner Bottle is part of the NUK First Choice range which means the parts are all interchangeable with any other First Choice products. The First Choice range was developed with mums and medical experts worldwide to find the ideal feeding bottle. First Choice bottles have an extra wide neck to make it even easier to make up a feed and clean the bottle afterwards, and easy to hold. The sealing disc and screw ring guarantee leak-proof transport. They are available in plastic (BPA Free polypropylene) or glass. British Dental Health Foundation approve these bottles. All NUK products are BPA (Bisphenol A) free. They are made from polypropylene plastic . Please note this type of plastic has a slightly milky appearance. Sterilise NUK bottles, teats and soothers using steam or cold water sterilisation. Microwave sterilisation may cause material damage to latex teats or soothers. Do not place NUK products in the dishwasher as this can cause material damage. For hygiene purposes and safety, replace teats and soothers after 1-2 months use. NUK First Choice Learner Bottles are designed to make the transition from breast and bottle feeding to drinking from a cup easier. With ergonomic grips making it easy for your child to hold the cup themselves. The non-spill design is ideal for active babies and reduces mess.