Our award-winning b.box sippy cup features our innovative b.box weighted straw that moves with the liquid – whatever angle the cup is tilted. Our 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/breast feeding to milk in a cup. The perfect cup at home or on the go. Encourages independence with easy-grip handles and simple flip-top lid. Watch video here. 6m+ Weighted straw moves with the liquid, whatever angle the cup is held Simple flip top lid Base also fits training cup lid and spout cup lid Dishwasher safe Sippy cup base is microwave safe. Do not microwave sippy cup lid and straw Made from PP and silicone, steel weighted ball Dimensions (cup with lid) 15 x 12 x 7.5cm 240mls/8oz capacity BPA, Phthalates and PVC free Care Sippy cup base is microwave safe. Heat in intervals of 30 seconds and stir thoroughly. Test temperature of contents before serving. Do not microwave sippy cup lid and straw.