Purchased a few years ago and unopened. - Brand: medela - Product name: Contact nipple shields - Case color: Yellow - Size: S 16mm Medela's Contact Nipple Shields, a part of their breastfeeding care series. These can be used temporarily when nipples are sore or cracked, or when a baby has difficulty latching. Made of thin, soft silicone, they are placed over the nipple before breastfeeding to protect it. There is a hole at the tip, allowing the baby to drink breast milk. Type: Nipple shield