Age : 1M+ Includes slow flow teats BPA-Free Unique anti-colic valve technology - Reduces fussing and discomfort by venting air away from baby's tummy. Ergonomic shape for maximum comfort - Due to the unique shape, the bottle is easy to hold and grip in any direction for maximum comfort, even for baby’s tiny hands. Natural latch on due to the wide breast shaped nipple - The wide breast shaped nipple promotes a natural latch on similar to the breast. Designed to give a more comfortable and contented feed for your baby. Skin-soft teat designed for a natural feed - The skin-soft nipple material closely resembles the feeling of the breast, making it easy for your baby to combine breast and bottle feeding. Flexible spiral design combined with comfort petals - The spiral design combined with our comfort petals inside the nipple increases softness and the flexibility allowing natural tongue movement without nipple collapse. Designed to give your baby a more comfortable and content feeding. Simple to use and clean, quick and easy assembly - Wide bottle neck makes filling and cleaning easy. Only a few parts for quick and simple assembly. Compatible with the Philips Avent Natural range - The new Philips Avent Natural bottle is compatible with the Philips Avent range, excluding Classic bottles and cup handles. We advise to use the Natural bottles with Natural feeding nipples only.