These flange inserts are compatible with most wearable breast pump, making them a versatile addition to your breastfeeding accessories. The silicone material is washable and reusable, providing a option. The inserts help to create a better seal, enhancing suction and improving milk flow for a more pumping session. Features -Color:Transparent -Material:Silicone -Size:4.50X4.50X3.50cm/1.77X1.77X1.38in -Efficient pumping: transform your breast pump flange size effortlessly to maximize milk expression and your pumping routine - comfort: specially crafted for small sized nipples, these inserts minimize discomfort and enhance the overall pumping experience -Portable and discreet: wearable design ensures convenience and privacy, making it ideal for use at home, work, or while traveling -Reusable and durable: silicone material ensures these inserts are washable, reusable, and resistant to wear and tear -Leakfree design: provides a secure seal to prevent milk spillage, making every pumping session more productive Package list: 6 x Breast Pump Flange Inserts