Ardo's silicone breast shell inserts are designed to provide comfort and convenience for nursing mothers using the Ardo Melia and Hands-Free Electric Breast Pumps. These soft, flexible inserts measure 17mm and fit securely into the pump flanges, creating a gentle barrier between the skin and the hard plastic surface. The silicone material is smooth and non-irritating, allowing for a more pleasant pumping experience. With two inserts included, you can alternate between uses or have a spare on hand. These inserts are easy to clean and can be reused, making them a practical addition to your breastfeeding essentials.