Main product description There are 6 types of wide neck pacifiers:Preemie - feeding premature babies,Level 1 – feeding newborns,Level 2 - feeding infants from the age of 3 months,Level 3 - feeding infants from the age of 6 months,Level 4 - feeding infants from the age of 9 months,Y-cut – feeding infants from 9 months of age with a Y-cut. It allows a faster flow of liquid with a higher density. Mode of useBefore first use: Handle the pacifiers with clean hands and on a clean surface. Place the pacifier in an open container of boiling water for 3 minutes. If it were cooked longer, its quality may deteriorate. Make sure the hole in the teat is clean.After the first use: The pacifiers can be washed in the dishwasher - only when they are placed in the upper part in it. sterilizers/microwave sterilizers.Before each use: Pull the pacifier and make sure it does not break.