2 x 300ml bottles fitted with a first choice43 size 1 0 6 months silicone medium feed hole teat and a sealing disc for leak proof transportation the bottle features the original nuk orthodontic asymmetrical shaped teat which is designed with a special super soft zone which adapts perfectly to babys palate simulating breastfeeding as closely as possible so true to nature that most babies hardly notice the difference r r the teat has an extra wide lip support and the improved nuk anti