Medela Hands-free Collection Cups, are designed to work with your existing Freestyle Flex, Pump in Style with MaxFlow, or Swing Maxi double electric breast pump. These ultra-portable cups turn your existing pump into a hands-free breast pump for ultimate flexibility. Cups fit in your bra for easy pumping; the lightweight design lets you multitask while pumping. Cups feature just 3 parts to clean and come with two sizes of anatomically-designed breast shields for a comfortable fit. With Medela Hands-free Collection Cups you have one pump, yet with two ways of pumping, ensuring you have the solution for any pumping situation without compromising on performance.