This replacement breast shield for Elvie Pump features clear alignment markings to help position the nipple for efficient suction and improved milk flow. Available in three sizes (21 mm, 24 mm, 28 mm) to ensure a comfortable fit, the set includes two shields for immediate use. Made from Eastman Tritan EX401—100% BPA-free plastic—this pump accessory is durable, lightweight and dishwasher safe for easy cleaning. Ideal as a flange insert or pump replacement part, this accessory is for use with Elvie Pump only and helps make pumping sessions more comfortable and effective.