This bottle was immediately adopted by my baby when I wanted to wean. The shape of the nipple is both broad and flexible but not too much, which allowed a smooth transition. It is BPA and anti-colic system which does not spoil anything but if I was lucky that my baby never got in. Its shape is practical and ergonomic, cleaning is easy. For the moment the pacifier is resistant to wear and to washing. See when my baby will have more teeth.