Feature: 1. PP MATERIAL: Breastmilk storage bottles are made of PP material, safe and non toxic, and resistant to 120 degrees. 2. REFRIGERATED DESIGN: Breastmilk freezer bottles feature a refrigerated design for storing cold milk in the refrigerator. 3. FOUR MILK BOTTLES: Includes four different colored bottles, making it easier to distinguish milk stored at different times and easy to replace. 4. WIDE BORE: Breastmilk storage freezer bottles are designed for safe and secure milk storage with wide bore and easy to clean. 5. PREVENT LEAKAGE: Milk storage bottles prevent leakage and do not waste breast milk, making it easier to provide breast milk for your baby. Specification: Item Type: Breastmilk Bottles Material: PP Product Size: Approx. 6x11cm / 2.4x4.3in Quantity: 4pcs Color: Blue, Pink, White, Green Capacity: 180ml. Package List: 4 x Breastmilk Bottles Note: Pregnant women are advised to label each bottle with the breast milk storage time so that babies can drink breast milk or fresher breast milk.