Pumping just got better with our Silicone hand-free collection cups. Combine these cups with our newest breast pump and you can pump hands-free while on the go. Powerful and compact, the Z2 delivers 3 different pumping styles: Stimulation, Expression, and 2-Phase modes. Whether you are looking to bottle-feed your baby, increase your milk supply, or stock up your freezer our Collection Cups are the perfect hands-free breastfeeding choice. Moms will appreciate this addition to their breastfeeding routine.