The pacifiers are simply not well thought out, the shield has only one nasal cavity. Below the shield is round. However, the mouthpiece has no up and down. If the child wrong way puts the pacifier in his mouth, the plate is too large, the rounding pushes deep into the nose of the baby. My Little spits the pacifier then made repeatedly. I had previously Aventschnuller who have a nose recess top and bottom, which are super. These pacifiers are unfortunately a bad buy.