Similac Infant Nipples and Rings are latex-free and designed for infants with developed sucking strength. They’re intended to work with Similac ready-to- feed 2-fl-oz and 8-fl-oz bottles, and are individually prepackaged and disposable for added convenience. DO NOT use as a pacifier, as this can cause a choking hazard. DO NOT reuse, as this can cause deterioration or separation of the rubber and pose a choking hazard. Keep out of reach of children.