Medela PersonalFit Breastshields in Large size (27mm) are designed to provide a comfortable and efficient pumping experience for mothers with larger nipples. The soft, flexible silicone conforms to your unique shape for optimal fit and stimulation, while the oval design mimics a natural nipple to reduce pressure and discomfort. A tunnel design allows for free milk flow, maximizing milk expression during pumping. These BPA-free breastshields are dishwasher safe for easy cleaning and sterilization. Using correctly sized breastshields can significantly improve your breastfeeding experience by reducing nipple soreness, optimizing milk flow, and promoting a natural feel for your baby. Compatible with all Medela breast pumps, these breastshields can also help increase your milk supply through more comfortable and efficient pumping sessions.