Nuby 9 oz. Non-Drip Bottle 3 Stage this well-designed nursing bottle promises an end to leaks and messes. Nontoxic, break-resistant plastic and non-drip, leak-proof nipple prevents your baby from ingesting air, which can cause gas. Nipple features dimples that gently massage your baby's gums and aid in eruption of teeth.Sipper spout aids in transition from bottle to cup.Removable easy-to-hold handle. Includes bottle hood for travel. Wide neck : easier to fill and clean. Nipples for wide neck bottles feel more like mother's breast • Removable handles