Baby Brezza bottles are the only natural bottles that are a breeze to feed & clean! They only have two parts – one fewer than virtually every other bottle – so they are the easiest to clean. Which saves you valuable time – up to 10 hours a year. Even better, they feature a wide, breast- like nipple so your baby can easily transition between breast and bottle. Available in glass or plastic, 5 and 9 oz. And BPA-FREE too!