We offer you a sustainable alternative made of robust borosilicate glass so that you can completely dispense with disposable drinking straws. The straws are the ideal replacement for all Helia Tumbler Cub sizes, including 0.45 L and 0.6 L Reusable and durable: After using the straws, simply clean with the straw cleaning brush. Thanks to their stainless steel construction, they can be used for many years. Safe drinking: The reusable glas straws in a practical set of 3 are made of food-safe materials which are entirely free from BPA and other harmful pollutants. Easy to clean: Each glas straw can easily be cleaned with the straw cleaning brush. The brush is specially designed to clean the inside of each straw.