The Medela Personalfit Flex Funnel, sized at 21mm, is engineered to enhance comfort and efficiency during breast milk expression. It features an innovative oval shape and a flexible rim that adapts smoothly to the natural shape of the breast, promoting better milk flow. This essential accessory is designed for seamless integration with compatible Medela breast pumps, supporting mothers in maintaining a successful pumping routine. Its ergonomic design aims to minimize pressure points, allowing for a more comfortable and effective experience.