DISCREET, LOW-PROFILE DESIGN FOR ON-THE-GO MUMS: This milk collector sits comfortably and discreetly inside your nursing bra, making it perfect for use at home, at work, or on the go. Its low-profile shape stays hidden under clothing so you can collect let-downs without anyone noticing. SOFT, FOOD-GRADE SILICONE THAT IS GENTLE ON SKIN: Made from 100% soft, food-grade silicone that's flexible, lightweight, and comfortable enough to wear for extended periods. It's also BPA-free and safe for both mom and baby. PASSIVELY COLLECTS MILK WHILE YOU FEED OR PUMP: Designed to be worn on the opposite breast during nursing or pumping, this collector passively catches let-downs without any active suction so you can save milk you would otherwise lose to nursing pads. EASY-POUR SPOUT AND STORAGE PLUG INCLUDED: When you are ready to transfer your milk, the built-in spout lets you pour it into a bottle or storage bag with zero mess. The included stopper plug also makes it easy to seal and store milk temporarily in the fridge. COLLECTS UP TO 1.5 OZ (42 ML) OF BREAST MILK: Each cup holds up to 1.5 ounces (42 ML) of milk,and comes with one silicone collector and one plug perfect for catching those small-but-precious amounts throughout the day.