Product Overview: The Medela Contact Nipple Shield helps facilitate breastfeeding for mothers experiencing latch difficulties or discomfort. Key Features: ‣ Provides gentle protection while maintaining milk flow. ‣ Ultra-thin, flexible design allows for a natural feeding experience. ‣ Allows babies to latch while minimizing discomfort for mothers. Specifications: ‣ Material: 100% silicone. ‣ Size: 20mm diameter.