The Nasal Pillows for AirFit™ P10 Nasal Pillow Mask is a single pair of nasal pillows for the ResMed AirFit™ P10 mask in the selected size. Choose desired size nasal pillows when ordering. The available replacement sizes are extra small, small, medium, and large. All four sizes can fit on either the AirFit P10 mask or the AirFit P10 For Her mask.