Features: Unique temperature markers monitor changes in breast milk temperature at any time, helping mothers easily determine whether the milk is at a suitable drinking temperature and providing a scientific feeding experience for babies. Safe ensuring the safety of breast milk during storage and use, protecting the health of babies. The well-designed sealing structure effectively prevents leakage and air from entering, maintaining the freshness and nutrition of breast milk, ensuring maternal love. Large capacity design, each milk storage bag has a capacity of 250ML, suitable for different stage of breastfeeding needs, easy to store and carry. Single time use design, eliminating cleaning troubles, simple and easy to use. It can be directly refrigerated, suitable for long-term storage, making breast milk preservation easier and more efficient. Specifications: Component: PET+PE Size: 250ml Practicality: Suitable for breast milk storage, can be refrigerated, suitable for postpartum mothers to use at home or when going out, ensuring that babies can enjoy freshness breast milk at any time Package Includes: 1 Box Temperature Sensing Breastmilk Storage Bag (contains 30pcs milk storage bags, each with a capacity of 250ml) note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.