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: Colorful Shape: Bent Material: High Borosilicate Glass Size: 200mm*8mm Wall Thickness: 1.5 mm Package include: 8pcs bent 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. Eco-Friendly: An environmentally friendly alternative to plastic straws that can be reused to reduce pollution and save our earth and oceans. Borosilicate Glass: Made of BPA-free, lead-free pure glass, healthy and tasteless. Borosilicate glass is stronger than other types of glass, endurable to instant temperature changes (-30 °C to 150 °C), perfect for cold and warm drinks. More stable than metal, resistant to corrosion, suitable for any beverage such as cocktails, smoothies, milkshakes, carbonated drinks, etc. Cosy Size: The reusable straws are moderate in size and more comfortable to use. Straws: length 20 cm, inner diameter 0.5 cm, outer diameter 0.8 cm. Cleaning brush: length 20 cm. Easy to Clean: The Drinking Straws set includes two cleaning brushes, which are long enough and equipped with high-density, soft nylon bristles, for easily cleaning out the inner wall of the straw. You can also clean them in the dishwasher. Multiple Colors Available: 8 pack colorful bent straws for you to choose. You can select them according to personal preference, the types of drinks, or the different occasions.