Flange Replacement suitable for Baby Bliss Wearable Breas pump S39

This flange is crafted from food grade silicone & BPA-free, so you can trust it to keep your baby's breastmilk safe! Plus, its design prevents contamination & helps keep the milk fresh. Sanitize with water steam, boiling water, or microwave-steam bags & get peace of mind. The size is vital for comfortable & efficient pumping. Monitor your nipples during pumping--if they rub or feel squished, a different size may be needed. Remember to replace the wearable breast pump flange insert every 1-2 months for best performance. Enjoy clean, safe & fresh breastmilk every time!