✅Flange Insert 19mm, wearable breast pump flange suitable for S9 / S12 / S9Pro / S12Pro breast pump (with 24 mm breast shields) and almost any milk collector 24mm.Package include: 2pcs Flange Insert 19mm (transparent). | ✅Choosing the right flange insert for pumping is more comfortable and efficient. Some mothers have the experience of nipple swelling while milking, so it's important to observe how your nipples look during a pumping session. While pumping, your nipple should not rub or feel squished inside the flange tunnel. | ✅BPA Free, made of silicone material. It's safe, soft and odorless, nice pump parts replacement. And all AFONTOTO pump parts that come in contact with breast milk are BPA free, giving you peace of mind about your baby's milk. | ✅Easy to clean, Wash flange insert after each use with warm soapy water and rinse well with clean water. (Our material can be sanitized with water steam, boiling water or microwave-steam bags.) | ✅We`ve committed our lives to provide the best breast pumps accessories and customer care, supporting every mother with the beauty of parenthood. Please reach out to us if you have any doubt about our products, we will assist you within 24 hours!