About this item Material: Glass tumbler with lid and straw is designed with high borosilicate glass, which can withstand high temperature of 27°F. But please do not quench and heat quickly, so as not to burst the glass. The straw also uses high borosilicate and safety lead-free glass. protect your health Dual-purpose design: This glass cup can not only be drunk with a straw, but also you can drink your favorite beverage directly to your mouth by opening the small lid on the cup lid. The lid of the cup is sealed with a rubber ring, which can effectively prevent leakage Lightweight and portable: glass water bottles are ergonomically designed. Whether you have big or small hands, you can easily hold these glass cups. The anti-scalding and anti-cold leather case makes the cup look advanced. So glass tumbler is very suitable for outdoor travel Multi-purpose: This bottle with glass can hold any beverage you like, such as: water, juice, iced tea, cold brew coffee, beer, etc. Note: This product is glass and can be easily damaged during shipping. If you find that the item is damaged or unsatisfactory after you receive it, please send us a message through Amazon for a replacement.