Medela Nipple Shields Contact Nipple Shield L Size 24mm Protects nipples during breastfeeding, supports baby's latch, and gently supports breastfeeding. Unused item with damaged packaging. Please refrain from price negotiations. ■ Breastfeeding with Contact Nipple Shields. Medela Contact Nipple Shields are durable, comfortable, and convenient shields. They help babies who have difficulty latching onto the breast to take a wider area of the nipple into their mouths and latch on properly. They are also effective for mothers with flat or inverted nipples, mothers experiencing pain, or mothers for whom breastfeeding is difficult due to a strong milk flow. Contact Nipple Shields are specially designed to allow for closer contact with the baby.