Made with 100% food-grade material, Polyset Wave Assorted Plastic Water Bottle 1 L (Set of 6) is not only made of fine quality material but is also unbreakable and extremely durable. It is refrigerator & freezer safe, leak-proof and airtight. These water bottles can be carried to work, school or college to keep beverages fresh, safe for a long time. Buy this product online now.