Leak-proof:Sivaphe Glass travel mug is spill off, The lock button ensures the spout doesn't open accidentally. Just slide the lock to open, exposing the comfortable drinking spout. Easy to use:This iced and hot beverage tumbler is made of tough and borosilicate glass,Refrigerator and microwave available. Foldable Handle:This portable travel mug with foldable handle, it is easier and more convenient to pick up and go. Easy to clean:Reusable coffee cup is easy to open and close,and handwash and dishwasher support. All-occasion support:Sivaphe glass tumbler suit for home and office, indoor and outdoor;This travel mug can use as smoothie cup, coffee mug, tea cup, ice cream cup, fruit cup, milk cup. Reusable Glass Ice Hot Coffee Cup 16 oz, Portable Travel Mug with Spill-Proof Lid and Thermal Sleeve for Home Office Black