150ml plastic bottle with silicone teatnuk first choice bottles are designed to be used with first choice teats the first choice teat replicate a mothers nipple during breastfeeding and features the special orthodontic asymmetrical nuk shape an extra wide lip support and new extra soft tip to fit babys mouth perfectly simulating breastfeeding as closely as possible so true to nature that most babies hardly notice the difference clinically proven for optimal combination of breast and