Medela Contact Nipple Shields are designed to assist mothers experiencing breastfeeding challenges. These small-sized shields come in a pack of two with a convenient storage box, made from ultra-thin, soft silicone to provide comfort while maintaining skin contact during nursing. The small size (16mm) is suitable for mothers with smaller nipples. The shields can be sterilized by boiling or steaming and should be stored in the included protective case when not in use. Made from BPA-free medical grade silicone that is safe for both mother and baby.