At a glance: Double leak proof: double the protection with both stopper and lid. Clip on lanyard: minimizes accidental spilling and provides peace of mind during use. Secure Suction Base: secures to flat surfaces to avoid tipping over when placed down. Comfortable: soft silicone breast shield and body. Easy to use and clean: 1-piece construction. Quiet and discreet breast milk collector. Light and portable, ideal on the go: take it with you anywhere you go as your breastfeeding companion. Safe for you and baby: All parts that touch breast milk are made without BPA.  Made from 100% food-grade silicone. Holds up to 100ml / 3.4oz. of breast milk. Not a breast pump – a breast milk catcher, milk saver or silicone breast pump does not generate any sucking cycles to actively remove milk from the breast in an effective and efficient manner.