These glass baby bottles from Green to Grow are a safe, stylish, and sophisticated choice for parents worried about toxins in plastics. The glass baby bottles are designed for comfort, with a modern, ergonomic shape. Graduated measurements are embossed into glass in ounces and milliliters. Features: 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) BPA-free Made in the USA