Product Overview: Pre-sterilized and leak-proof breast milk storage bags designed to safely store and preserve breast milk. Key Features: ‣ Pre-Sterilized & Ready to Use: Ensures hygiene and convenience. ‣ Double-Zip Seal: Prevents leaks and spills. ‣ Durable & Freezer-Safe: Designed for safe storage in the fridge or freezer. Specifications: ‣ Material: BPA-free plastic