Not used. I opened them to sanitize them, but Baby did not like them. She liked the bibs brand better. Pacifiers 0-3 months distributed in hospitals nationwide: trusted by medical professionals to calm newborns Symmetrical nipple supports proper oral development: a collapsible, symmetrical nipple supports the natural oral development of your baby’s teeth and gums 100% medical grade silicone: made entirely from flexible medical grade silicone, specially created for newborns of 0-3 months; adheres to the American Academy of Pediatrics guidelines¹ Fingerheld solution: uniquely designed so that you can place your finger in the nipple. This helps you create an even stronger bond by helping your baby suckle Baby pacifier that's compatible with Snuggle: Philips Avent Soothie can be attached to Snuggle, a plush toy that helps babies find, hold and love their Soothies Easy to clean: its design stops water from getting trapped in the nipple; simply use a sterilizer or submerge in boiling water, replace after 4 weeks of use for hygiene reasons The set includes: 4x Philips Avent Soothie Pacifiers for newborns 0-3 months, 2 lilac and 2 pink