These are our favorite pacifiers. They are the same ones they use at the hospital, and they became the ONLY pacifier my daughter would take. They have holes on them so you could put a string clip to clip on the babies clothing. They have a little lip that's easy to grab. They are fully round on the nipple like part that the baby sucks on, so there is no right way to put them in which makes it easy for a baby to be able to plop it in their mouth. Most pacifiers have a right side up & down which makes it hard for a baby to do it themselves. My baby has been able to put it in herself since she was 4 months old! They are inexpensive, easy to sterilize, and a MUST! They are my top product!