Buy 4 bottles get the 5th one free. Offer good on participating items only. Discount will be taken off the pair with equal or lesser value. Add all bottles to your cart and the discount will automatically be taken at checkout.Offer good while supplies last. Our 10 oz regular 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.