Reusable Premium Material: These straws are made of high borosilicate glass. environmentally friendly,dishwasher safe, reusable,Be high strength, stiffness, hardness and good resistance to . Thus, there will be no metal aftertaste, no leave aftertaste from your last drink.Do something for protecting the environment.Glass straws have a higher level of protection for health and living environment.Prefect for Drinks: glass straws drinking reusable with outer diameter of 0.4 inch can fit through the lid slot of your jar, , glass tumbler etc.Suitable for jar cup, various tumblers, bar glass and more glass cup. Perfect match for beverages.Convenient Cleaning: reusable straws can withstand 150 high temperature and -21 low temperature. The straws can withtand heat so they are safe to place in the dishwasher for a complete.Shatter Resistant: High borosilicate has anti-crushing function after strengthened, making it both safe and durable to drink from. The edges of straws are smoothly handmade, no need to worry about hurting your mouth. The straws are suitable for smoothies, beverages, coffee, lemonades, shakes, milk tea, cocktails, hot , juices, wine and other liquids.Colour: transparentMaterial: glassSize: 8x200mmPackage Contents:12 * Reusable straws4 * Cleaning brushesOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed is +/- 1-3cm.