<p>Keeping warm and cold: straw cup using Double Wall Vacuum Sealed technology, high vacuum process, insulation and cooling time will reach 7 hours and 11 hours respectively, can be used all year round</p><p>Leak-proof coffee mug: This cups with lids and straws, multi-functional rotating cup lid built-in silicone ring, good sealing, can effectively prevent the occurrence of water leakage, can use a straw, but also can be directly drinking</p><p>Health material: 40 oz tumbler with handle is made of 304 stainless steel inner liner which has been processed by pitting process and is corrosion resistant and does not contain harmful substances for long-term use</p><p>Insulated tumblers features: the water cup ergonomic design, comfortable grip, rounded mouth, smooth water, easy and convenient to clean cup straw bottom widening design, stable and non-slip, not easy to fall</p><p>Applicable scenarios: water bottles with handle for travel, sports, work, school, camping, can also be used as hot coffee tumbler, winter insulation, summer cold, simple modern insulated tumbler is the perfect gift for wives, mothers, fathers, grandparents, children, lovers</p>