7 Nov Sterilized Teats Neonatal Teats without collar ring0-2 Months Neonatal Teats in Tpe0-2 Months Neonatal Teats in Tpe2-6 Months Neonatal Teats 3 holes in Tpe2-6 Months Pediatric Teats in Tpe6+ Months Silicone TeatsFor preemie