The new Philips Avent cup works with the Philips Avent Natural and Classic+ bottle ranges (except the glass bottle), as well as all other Philips Avent cup models (excluding the Natural Drinking Cup). The angled spout is built to make it easier for toddlers to take their first sips without tilting their heads too far back. Your toddler will be able to grasp the cup and drink independently with the aid of the trainer handles. These handles are not only shaped to be easily grasped by small hands, but they're also rubberized for a non-slip grip. The material used to make this Philips Avent cup is BPA-free. There will be no more messes! Water just comes out of the spout while the infant is drinking from it, according to the current patent pending valve. By removing the valve, the sippy cup turns into a free-flowing cup. The safe grooming cap keeps the spout clean whether you're at home or on the go.