The Elvie Pump Clear Breast Shields in size 28mm come in a pack of 2, making them convenient for use with breast pumps. These shields are BPA free and dishwasher safe for easy cleaning, ensuring hygiene and safety for both mom and baby. The clear color makes them transparent, allowing for easy monitoring while pumping. The shields are designed by the trusted brand Elvie and are a reliable accessory for breastfeeding and nursing mothers.