Features: Crafted from premium borosilicate glass, this heat resistant tumblers with leak proof lid withstands extreme temperature changes ( 20°C to 150°C), perfect for both hot beverages and iced drinks. Features a detachable silicone sealed straw, dishwasher safe construction, and ergonomic grip design for effortless cleaning and comfortable handling during extended use. Ideal for busy parents, office workers, and fitness enthusiasts seeking drinkware that transitioned seamlessly from kitchen counters to gym bags. Enjoy mess frees hydrations during road trips, backyard BBQs, or work meetings with its spill resistant locking mechanism and compact portable profile. The clear borosilicate glass body showcases layered beverages while maintaining flavor integrity, complemented by a modern minimalists aesthetic for stylish daily use. Specifications: Component: High Borosilicate Glass Size:Approx. 450ml:6.5x13.5cm/2.56x5.31inch 550ml:6.5x15.5cm/2.56x6.1inch Styles:2 Optional Package Includes: Glass Cups X 2 Sets note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you will not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color about the item.