【Multiple Sizes, Precise Choice】: We offer 21 sizes of flanges,12/13/14/15/16/17/18/19/20/21//22/23/24/25/26/2728/29/30/31/32mm different flange sizes are available for more exactly choosing the size for your nipples.Different Periods Provide More Cozy Experience, selection of the right flange size can help the breast milk to drain smoothly. 【Wide Application】: Compatible with Spectra S1 ,Spectra S2, Spectra 9 Plus, Motif Luna, Amada MYA breast pump.Compatible with spectra wide-mouth bottles, AVENT bottles, and Begical wide mouth bottles,also most other wide-mouth bottles. It has same suction power as original parts.Not original spectra motif luna amada mya parts/accessories. 【Food-Grade silicone,Comfortable&Safe】:Our Replacement pump parts are made of food-grade silicone, BPA-free, safe, soft and odorless, skin-friendly for mommy and baby. soft comfortable material, Snug fit can comfort and efficient pumping, helping to avoid nipple damage or irritation. 【Easy to install&Cleaning】: Easy to plug onto the pump and no more falling tubes and tearing ends,the operation is simple, and the use feels comfortable.Clean with soapy water and rinse with clean water. Do not use hard brushes. Clean the thin tips with fingers. Do not use dishwasher. 【100% Satisfication】:If you have any further questions about our wearable breast pump flange replacement,please contact us in any time .Our dedicated service team is committed to providing you with the best possible solution and ensuring your satisfaction. LHUS-Flange-2P-14MM