【Protect Sore OR Cracked Nipples】The breast shells are designed to be placed in your bra to protect nipples from friction and help with relieving engorgement. | 【Collect Every Drop of Breastmilk】Unlike nursing pads, these Nursing Cups help collecting breast milk leaks. Never worry about getting shirts wet while breastfeeding with milk-saver. | 【Made of BPA FREE & Soft Silicone】The breast shield base are made of 100% BPA Free Food-Safe Silicone. They are soft and flexible which can reduce the pressure of breast and fit your body comfortable & snugly. | 【Unique Air Vent Designed】The air vent of the milk saver allows for airflow so the nipples can heal and be ventilated. It's also convenient for transferring milk to bottles. | 【Convenient & Reusable】They can fit any size of bra without affect the appearance. They are also easy to clean and sterilize which provide excellent breastfeeding support for new moms.