Medela Electric Breast Pump, Shuyue Upgraded Multi-Select Shield, Breast Milk Collection Shield Accessories, 21mm*2

Designed to center the nipple and allow free movement, preventing excessive areola suction and nipple friction.

Measure nipple diameter at the base (excluding areola) using a ruler or tape measure in millimeters.

If nipple is too small or too large for a shield, try a smaller or larger size accordingly.

Flex breast shields in sizes 21mm x2 and 24mm x2 included in the standard pump package.

All accessories and products contacting breast milk require daily sterilization.

Recommended replacement every 3 months for hygiene and performance.

Over 1000 clinical studies involving mothers and experts validate the design and effectiveness.

For detailed customer support and inquiries, contact Medela customer service.

Based on clinical testing comparing 105° wide-angle shields to 90° traditional shields.