Start creating a better future for the next generation with this environmentally friendly glass baby bottle. Tommee Tippee’s Closer to Nature bottle is inspired by what babies love most: Mum. With the most breast-like teat ever made, this baby bottle flexes like mum and feels like mum because babies prefer it that way. In fact, our Closer to Nature baby bottle has guaranteed acceptance and an anti-colic valve making it the best thing for baby since you are making feeding easier for everyone.  Product Features ENVIRONMENTALLY FRIENDLY GLASS BOTTLES: 100% recyclable glass bottle base. Durable medical grade glass, which is naturally stain resistant and free from BPA, phthalates and toxins. BREAST-LIKE: Distinctive, breast-like teat flexes like mum for a comfortable feed. EASY LATCH: Shaped like a breast for easy latch-on teat – acceptance guaranteed*. MUM RECOMMENDED: 97% mums recommend this bottle**. ANTI-COLIC: Sensitive anti-colic Closer to Nature valve eliminates excessive air flow and prevents symptoms of colic. How to use: Inspect before each use and pull the feeding nipple in all directions. Throw away at the first signs of damage or weakness. Do not leave a feeding nipple in direct sunlight or heat, or leave in disinfectant (“sterilizing solution”) for longer than recommended, as this may weaken the nipple. Do not store with or allow to come into contact with solvents or harsh chemicals. Not suitable for use in a grill oven or a microwave oven with the grill feature switched on. Keep all components not in use out of reach of children. For safety and hygiene reasons it is recommended the feeding nipple is replaced at least every 2 months. Do not heat in a microwave.