Breast shield for sore or cracked nipples – the breast shells are designed to be placed in your bra. compared with soothes gel pads, these nursing shells protect nipples from friction and help with relieving engorgement. collect every drop of breastmilk – breast milk collector storage. compared with nursing pads, they help you collect precious breast milk leaks and relieve the discomfort and pressure of unexpressed milk. never worry about getting shirts wet while breastfeeding with milk-saver. soft and safe silicone material(bpa-free) – soft and flexible silicone material reduces the pressure of breast and fits your body more snugly. no longer suffer from hard plastic. made of 100% food-grade material, ensuring the breastmilk quality unique design of air vent – the design of air vent allows for airflow so the nipples can heal and be ventilated. it’s also convenient for transferring milk to bottles