Medela Breast Milk Bottles set includes two 250ml bottles designed for collecting, storing and feeding breast milk. These bottles are compatible with all Medela breast pumps and feature clear measurement markings for accurate volume tracking. Key features: • 250ml capacity bottles (2 pieces) • Compatible with all Medela breast pumps • BPA-free materials • Clear volume measurement markings • Leak-proof screw-on lids • Dishwasher and microwave safe These bottles are part of Medela's comprehensive breastfeeding solution system. They can be used directly with Medela breast pumps for collection, then safely stored in the refrigerator or freezer. The bottles are made from durable, high-quality materials and are designed for long-term use. The wide neck design makes cleaning easy and thorough.