Our silicone breast milk collector can be used in combination with our breast milk storage trays to ensure that you don't waste a drop of your liquid gold. You can suction the collector onto the opposite breast while nursing to collect let down or you can use it as a manual breast pump. Our collector comes with a suction base to keep from accidently knocking over once removed. Our collector also has a lid to keep anything from falling into your milk. We include a drawstring bag to keep your collector clean when put into a diaper bag or purse making it a breeze to nurse anywhere!