These are a set of 4 new bottles in box. The box is a little rough. It is taped at the top (see pics) and the box is wrinkled in spots. The bottles themselves are new. Size 3 nipples. 11 ounce bottles with rings and caps. Relieves colic and discomfort by anti colic valve in nipple that reduces air ingestion. Nipple design prevents nipple collapse. 3 months +. Pet friendly home. baby anti colic system big bottles Avent bpa free boy girl