New, unused items. I received these from others or purchased them online and used them in rotation for about three months, starting in September 2025. Each time I used them, I washed them with baby dish soap and soaked them in disinfectant! I am selling these because I have increased the nipple size. *There is a vaper in the family. They do not vape near the baby. *When packaging, the nipples will be flattened due to thickness. Please be aware of this beforehand.