Nuk Space Soother - Allows more airflow to prevent irritation on baby's skin.
NUKs Orthodontic nipple shape is asymmetrical with a scooped bottom:
Flatter to allow for more room for natural sucking motion, slimmer to reduce pressure on jaw and teeth, and narrower to help prevent teeth misalignment

Product Features: 

Heart- shaped sheild fits perfectly under babys nose for easy breathing
Orthodontic shape to ensure baby's healthy jaw and teeth development
BPA Free, Latex Baglet
NUK soothers are packaged in their own cleansing box! For microwavable cleansing on the go!