Silicone Breast Milk Collector MedelaEasy to use, simply attach the breast milk collector, also known among other brands as a silicone breast pump, on one breast while feeding from the other to capture your natural let down 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 Soft silicone breast shield and