6 reusable glass straws, length 14.5 cm. The wide 8mm diameter makes the straws suitable for smoothies, drinks, milk shakes, etc. Glass straws are a good and sustainable alternative to plastics, as they can be used over and over again to minimise plastic waste and reduce harm to the environment. The glass straws are suitable for both cold and hot drinks as the borosilicate glass is durable and can withstand large temperature differences. They are easy to clean after use with the supplied brush.