Medela‘s newest and most advanced PersonalFit Flex Breast Shields aren‘t just comfortable and versatile, but they also help you express 11.8% more milk per minute! It will allow you to maximize each and every pumping session, so you can spend time on what matters most. Features: -Soft, smooth, natural-feeling rim -Oval shape can be rotated 360° for comfortable, flexible positioning -105° angle adapts to the breast -Effectively removes more milk faster and in less time -Compatible with all Medela breast pumps