Product Overview: Reusable refill cups designed for safe and convenient breast milk storage, offering a practical solution for busy moms. Key Features: ‣ Leak-proof lids ensure safe storage and prevent spills during transport. ‣ Reusable and easy to sterilize, offering an eco-friendly storage option. ‣ BPA-free material ensures safe and hygienic milk storage. Specifications: ‣ Material: BPA-free plastic. ‣ Capacity: 180ml per cup.