Suitable for ages 0+ months. Glass bottles are recommended for the newborns, as they are easier to keep clean and they maintain the desired food temperature for a longer time. The bottle, manufactured with new technology for production of glass, is ideally all-round smooth (without a seam). Teat shape similar to mum's breast, facilitating alternate breast and bottle feeding. Wide opening and durable and precise scale enable good hold and easy filling. Silicone Teat.