Our Glass Straws Made of food-grade high borosilicate glass, which has the characteristics of smooth surface and shatter resistant. Glass straws are transparent, it's easy for you to judge if the inside of the straw is clean. We are equipped with 2 cleaning brush , the transparent glass material makes the stains clearly visible. Temperature tolerance from -4℉ to 302℉, it’s enough for long time use. Glass drinking straws are anti-oxidize, even though you leave them alone for years, you also can reuse them. The glass straws will not spoil the taste of your drink since it is completely taste. This reusable straws set is well suit for most usage requirements. Such as : Water, Soda, Tea, Cola, Coffee, Smoothies, Thick Shakes, Lemonade, Cocktails etc. Specifications: Color: Transparent Shape: Stright Material: High Borosilicate Glass Size: 200mm*8mm Wall Thickness: 1.5 mm Package include: 6pcs straight glass straws 2pcs cleaning brushes Please Note: These glass drinking straws are very durable but are to be used like any drinking glass with caution. Although not intended for children if used by children they should be supervised by an adult at all times. Due to hand measure, the size may have 1-2cm error. 【 Healthy/Eco-friendly Materials 】Made of lead-free borosilicate glass, plastic-free, free of BPA, no metal taste, can be reused, is the best choice environmentalists and health concerns persons. The coloring in plastic straws contains heavy metals, would cause great harm to the children. Our glass straws are 100% safe and will not cause any health problems. 【 Rounded Ends Glass Straws 】The edges of our drinking straws are made smoothly, it would never hurt your mouth and teeth. Besides, The ends of our straws are rounded and well machined with no burrs to protect your mouth. 【 Easy Clean 】The glass straws is reusable and easy to clean. Our product comes with 2 matching glass straw cleaning brushes, which can quickly clean the straw without scratching the inside of the straw. 【 Suitable For Most Beverages 】This glass straw is very suitable for cold and hot beverages, such as smoothies, milkshakes, teas and juices, and is suitable for various occasions such as home, office, party, etc. 【 Package Conten/Promise 】A set contains 6 straight straws with an outer diameter of 8 mm and a length of 8 inches and two glass straw cleaning brushes. We offer all customer worry-free 3months warranty. If you have any question, please feel free to contact us.