This award-winning sippy cup features the innovative b.box weighted straw that moves with the liquid whatever angle the cup is tilted.The B.Box redesigned straw has a unique two-way valve, ensuring easy drinking and NO leaks, even with warm water.The sippy cup ensures that tots can drink to the very last drop. They can also drink lying down, making it the ideal transition cup from bottle/breastfeeding to milk in a cup. The perfect cup at home or on the go. Encourages independence with easy-grip handles and a simple flip-top lid.Features:6 month+Weighted straw moves with the liquid, whatever angle the cup is heldSimple flip-top lidThe base also fits the training cup lid and spout cup lidDishwasher safeDo not microwaveMade from PP and silicone, a steel weighted ballDimensions (cup with lid) 15 x 12 x 7.5cm240mls/8oz capacityBPA, Phthalates and PVC free