Purchased around January of the 26th year (Heisei era). These are pacifiers used from 1 to 3 months old. I tried various brands. After use, they were always washed, sterilized, and dried. I am selling them as I have switched to the next size of pacifier. White (NUK) 0-6 months Horse, Snoopy (Pigeon) 0-3 months Flower (combi) 0-6 months All come with cases. Thank you for looking.