Improved Original Nuk Shape – Mimics A Woman's Breast During Breastfeeding And Adapts To Your Baby's Mouth Thinner And Narrower Nipple Neck, Which Reduces Pressure On The Jaw And Teeth Flat Teat And Soft Underside – Provide A Pleasant Mouthfeel And Plenty Of Room For Natural Breastfeeding Movements Size 0-6 6-18 18-36 Months, Bisphenol A Bpa Free Variety Of Colors And Patterns, With Durable, Reusable Carrying Case, 1 Piece Per Pack