Leak-Proof Transparent Tumbler Insulated Double Wall Coffee Mug Durable Portable Water Cup Kitchen

Label:Yes Capacity: 250ml,350ml,450ml Package Includes: 1pc Glass Cup with Lid Color: Pink,Orange,Blue,Grey Material: Glass,Silicone Size: 5.5*9*9cm(2.17*3.54*3.54in),5.5*11.5*9cm(2.17*4.53*3.54in),5.5*14.5*9cm(2.17*5.71*3.54in) [INSULATED COFFEE MUG] Double wall glass coffee mug is equipped with a silicone lid, which can keep your hot drink warm for up to two hours, so you can enjoy your coffee leisurely without being too anxious. The double walled glass coffee mug is designed with double glass. Air is sandwiched between the double-layer glass, which can not only effectively isolate part of the temperature, but also prevent hot hands. [SEAL LID] The insulated coffee mug is equipped with a silicone inner plug made of maternal and child grade material, which is effective in heat preservation and leak-proof, and the water will not leak out easily. Since the sealing inner plug is detachable, it is very easy to be cleaned. But pay attention, there is an air hole on the top of the lid, please do not turn the cup completely upside down. [HIGH BOROSILICATE GLASS MATERIAL] The coffee cup is made of heat-resistant lead-free borosilicate glass, which is healthy and environmentally friendly, and does not contain any harmful substances. It is an ideal drinking utensil at present. Borosilicate glass allows glass coffee mugs to withstand sudden temperature changes from -40°F to 300°F. In addition, the clear coffee mug are super easy to clean, with a simple hand wash to keep them clean, or you can use the dishwasher, too. [SAFE VENT HOLE] The double wall glass has a mini hole somewhere in the glass. These holes will not let water/steam/condensation water enter, which can well reduce the glass bursting during use. Water and air can only be expelled, not entered. They will be completely hermetically sealed. Therefore, our double wall glass coffee mug has high safety and long service life. [WIDE VARIETY OF USES] Our glass coffee mug has a crystal-clear appearance, smooth and delicate lines, feel good and easy to hold. Clear glass coffee mugs are perfect for brewing tea, coffee, lattes, smoothies, desserts and juices. Whether at home or out camping, the silicone lid double walled glass coffee mug can provide you with a lot of help.