Nuby cup with soft straw and push button Big, bigger, bigger! With the Cup with Soft Straw and Push Button from Tritan you can quench even the biggest thirst. The cup combines a playful look with unbeatable strength, thanks to the Tritanâ„¢ material. Just push the button to use the thin straw. Specifications: Material: tritan Colour: blue Age: from 3 years Contents: 530 ml Gender: junior Dimensions: 9.5 x 7.3 x 24.8 cm (L x W x D)