CONTENTS: 2 Shields. The shield itself does NOT work. You need to purchase Maymom wide-mouth connector (Amazon ASIN: B07WD385MM) to make up a flange. INNOVATIVE DESIGN: Maymom designs separable flange compatible with spectra pumps. This design is preferable over Spectra one-piece design in several aspects. Easy to put together and take apart for sanitization. Adaptable to most hands free pumping bras on the market. Economical way to figure out the best fit of flange for your pumping comfort. Available shield size : 13mm, 15mm, 17mm, 19mm, 21mm, 23mm, 24mm, 25mm, 27mm, 28mm, 30mm, 32mm.
