2x Teats per packSuitable for NUK Nature Sense BottlesMade in GermanyA teat shape based on the shape of orthodonticJaw and Palate DevelopmentNUK Air System VentEasy Feeding and Easy SterilizingTeat opening:Size S (3 holes) - For Water and Breast MilkSize M (6 holes) - For Formula MilkSize L (9 holes) - For Thicker Liquids