Medela Contact Nipple Shields are designed to assist with breastfeeding challenges, featuring a medium size (20mm) and coming as a set of 2 pieces with a storage box. Made from BPA-free silicone, these shields help mothers experiencing latching difficulties or nipple discomfort. The product includes a protective storage case for hygienic storage between uses. The shields are made from ultra-thin, soft silicone that is comfortable on sensitive skin and safe for baby. They can be sterilized by boiling or steaming. As this is a personal hygiene product used during breastfeeding, proper cleaning and sanitization is essential before each use.