Glass DURABLE AND UNBREAKABLE: Crafted from high-grade borosilicate material, Momcozy breast milk pitcher can be used for low-temp refrigeration, and can also be used for high-temp sterili-zation. It is resilient against sudden temperature differentials and doesn't make the bottle break. LEAK-PROOF AND GOOD SEALING: With its thickened sealing strip design, Momcozy breast milk pitcher offers reliable leak-proof performance, keeping them fresh, cherish every drop of hard-earned breast milk. NEW MOMS BREASTFEEDING ESSENTIALS: Food-grade and BPA-free to make pump milk storage and breastfeeding hassle-free for moms. Engineered with ergonomic precision, the handle offers optimal comfort. EASY TO USE AND CLEAN: Momcozy breast milk pitcher adopts a wide-mouth design making it easy for busy nursing moms to pour milk and clean storage bottles quickly. MULTIFUNCTIONAL USE: Momcozy breastmilk pitcher is available for breast milk/juice/coffee/tea/other liquids. Furthermore, Its adaptable design extends its utility as a convenient baby formula maker pitcher.