@mellie777, thank you because when my son was a baby we used the old playtex with the drop ins that don't bend but they don't carry them anymore so we got the playtex vent air but thinking of getting these ones 😊
yes I was using just regular ones and my daughter kept hiccuping so her dad went to baby's r us and got these and they have really helped I love them ..also they bend or straighten I love to bend it when in bed feeding makes life easy and gotta get bags to drop in and you get a lot for good price. But yes my daughter loves them and so do I ...I even get slow flow nipples @morse2016