When it comes to comfortable, efficient suction, a good fit makes all the difference. Made of a soft silicone that's gentle on skin, Elvie Nipple Cushions slip inside your Breast Shields to enhance your fit. Hospital grade pump with comfortable cups that don't weigh you down. I didn't buy this pump at first, but it made a huge difference when i did. My hands were free, and i didn't have to worry about finding the right time to pump. If my baby was awake i was still ok to do it. It took a little longer to pump the same amount of milk as a regular pump, but it was totally worth it. It was a game changer for me, because i was ready to quit pumping.