5 oz wide neck baby bottles are made from PES plastic, which gives them a natural golden color. They are free of phthalates and free of bisphenol A – a suspected hormone-disrupting chemical used in polycarbonate plastic, from which most baby bottles are made. Bottles are tested in the U.S. to ensure they meet the highest standards for quality and safety Free of lead and PVC Includes a Beginner (slow flow, 0-3 months) nitrosamine-free silicone nipple 100% recycled packaging Dishwasher safe (top rack) Domestic and international shipping is calculated automatically by USPS at the bottom of the page.   We ONLY ship USPS Priority Mail or USPS Priority Mail International.   We Welcome combined shipping.   Combined shipping - we calculate all items weight and submit invoice according to total weight for multiple items.