NUK Simply Natural 1+m MEDIUM Flow Silicone Bottle Nipples, 2 nipple set NIB. NUK Simply Natural bottle nipples are designed to mimic the fit, flow, and movement of mom as closely as possible. This is the only nipple with up to nine nipple holes, just like mom, for a natural feeding experience. Multiple nipple holes and extra-soft nipple Slow-flow nipple has 3 holes Medium-flow nipple has 6 holes Fast-flow nipple has 9 holes Advanced 1-Piece Anti-Colic Air system helps reduce colic, gas, and spit up Flexible nipple is the same shape as mom?s nursing nipple Accepted by 96% of babies Nipple can only be used with NUK Simply Natural bottles Contains 2 nipples skuId: 69476927 Shipping is only to the lower 48 states, USA. But? If you are outside the USA you may purchase if your country participates in's Global Shipping Program. Bid with confidence; we are Experienced sellers for over 23 years. Ships from Washington, DC. Tracking included in ALL orders. NO local pick-up option. Preguntas? Adelante! Hablamos Español. (KA003)