Brand new! 5 oz capacity Promotes easy drinking and natural transition from breast or bottle to independent feeding; ideal for breastfed babies Extra-wide, soft spout feels more like mom—a comfort for baby as they make the transition to drinking from a sippy cup Anti-Colic Air Vent helps reduce the amount of air baby swallows, helping to minimize gas and colic Spill-proof silicone spout means fewer messes The removable handle is compatible with NUK Simply Natural bottles