Our glass baby bottles are a safe, stylish, and sophisticated choice for parents concerned about toxins in plastics. Made in the USA, our glass baby bottles are designed for comfort, with a modern, ergonomic shape. Graduated measurements are embossed into glass in ounces and milliliters. ?Made in the USA ?2 bottles per pack ?Bottles are tested in the USA and Europe to ensure they meet the highest standards for quality and safety ?Includes a Beginner (slow flow, 0-3 months) nitrosamine-free silicone nipple ?Compatible with all Green to Grow regular neck replacement nipples. ?Dishwasher safe (top rack)