BabyBuddha 32mm Original Flange Kit.The flange commonly known as a breast shield, is a funnel-shaped plastic or silicone piece that fits directly over your nipple to form a seal around your areola. It creates a vacuum that gently draws your nipple into the funnel for milk removal, depending on the size of your nipple, you may need an insert for a better fit. Replace breast pump flanges every 6-12 months. You can extend the life of your flange by cleaning it thoroughly after each use. However, even a well-cared-for flange will need to be replaced after 12 months of use. Compatible only with the BabyBuddha Pump. Do not clean in dishwasher or microwave steam bags. BPA Free. Massage cushions are NOT included with the 32mm flange kit. Includes:- Two (2) 32mm Flange and assembly kits.- Two (2) Duckbill Valves.- Two (2) Silicon Diaphragms.