• Designed to gradually develop the child's ability to drink through a straw.• Bite resistant and rounded spout that mimics the first approach with the straw allowing the child to position the mouth in an "O" shape. • Shaped spout to favor the correct positioning of the lips and off-center to facilitate the correct posture of the neck during drinking. • Innovative removable Easy Sips valve, patented to guarantee the anti-drop seal of the cup without compromising the ease of drinking of the child.