Medela Milk Collection ShellsMedela Milk Collection Shells Designed to collect breast milk throughout the day while protecting nipples from friction against clothing. Features: Collects breast milk between feedings and prevents nipple irritation from bras Outer cover made from Polypropylene (PP) plastic Inner liner made from soft silicone for gentle skin contact All parts are removable and easy to clean Imported from Switzerland Packaging: 1 box contains 2 shells Note: Milk