Glass baby bottles regular neck : glass baby bottles are a safe, stylish, and sophisticated choice for parents concerned about toxins in plastics. Made in the USA, these glass baby bottles are designed for comfort, with a modern, ergonomic shape. Graduated measurements are embossed into glass in ounces and milliliters. Bottles are tested in the U.S. to ensure they meet the highest standards for quality and safety. Includes a Beginner (slow flow, 0-3 months) nitrosamine-free silicone nipple. 100% recycled packaging. Dishwasher safe (top rack). Compatible with all Green to Grow regular neck replacement nipples. Availables en 2 sizes.