Breast Milk Collector: NCVI breast milk catcher help you collect and save every drop of precious letdown. Just wore it in nursing bra, breastfeeding moms won't waste gold liquid any more. Wearable & Discreet: Our breast milk catcher is wearable and hands-free. Invisible in your bra and no noise , perfect for the discreet day. Easy to carry, suitable for on the go. No pain: Curved design of breast shells fit your breast but no touch with nipple. Protect sore, engorged and cracked nipples, avoid friction with clothing. Removable ABS shell, no milk leakage when squeezed and bumped. Comfort & Air vent: The milk collection cups have light weight and slim size, won't burden the breast. The upper air vent design allows for air circulation, avoiding cracked nipple infection and promoting healing. Also help to remove cups easily after collecting. Reusable: Made of food grade material, BPA free. Less parts, easy to clean. No longer wasting money and resources, more environmentally friendly.