Flange Inserts 13-21mm For S9/s10/s12, 24mm Breast Pump Accessory, Wearable. Enhance Your Breastfeeding Experience with Our Versatile Breast Pump Accessories. Made from Food-grade Silica Gel, These Flange Inserts Are Designed to Be Odor-free and Gentle on Sensitive Skin, Ensuring Comfort and Safety. Our Flange Inserts Are Crafted to Fit a Wide Range of Breast Pumps, Including Traditional, Plug-in, and Wearable Electric Models. With Five Available Sizes—15mm, 17mm, 19mm, and 21mm—these Inserts Provide the Perfect Fit for Every Mother. Ideal for Mothers with Smaller Nipples, They Help Prevent Irritation and Promote a More Comfortable Milk Expression. Lightweight and Practical, These Inserts Make an Essential Addition to Your Breastfeeding Routine. Features: - Broad Compatibility: Fits Traditional, Plug-in, and Wearable Electric Breast Pumps. - Size Options: Available in 15mm, 17mm, 19mm, and 21mm. - Comfortable & Safe: Made from Food-grade Silica Gel, Gentle on Sensitive Skin. - Practical Use: Prevents Nipple Trauma and Irritation for a More Comfortable Experience. - Color: White and Transparent - Lightweight: Weighs Only 15g/0.52oz Package Includes: - Flange Inserts (Breast Pumps Not Included).