Medela Breast Milk Bottles come in a set of two 250ml bottles designed specifically for collecting, storing and feeding breast milk. These BPA-free bottles feature clear measurement markings and secure screw-on lids with yellow caps for leak-proof storage and transport. Key features: • 250ml capacity per bottle • Compatible with all Medela breast pumps • Clear measurement markings • Leak-proof screw-on lids with yellow caps • BPA-free materials • Dishwasher and microwave safe • Can be used for pumping, storing and feeding These versatile bottles are part of Medela's comprehensive breastfeeding solution system. The bottles can be used directly with Medela breast pumps for collection, then safely stored in the refrigerator or freezer. The clear measurement markings help track milk volume, while the durable construction ensures long-lasting use through multiple cleaning cycles. The wide bottle opening allows for easy cleaning and filling.