Capacity: 600 ml [High-Quality Stainless Steel] This cup is made of high-quality 304 stainless steel, and the plastic part of the lid is made of healthy PP material. 304 stainless steel is harmless and has no peculiar smell. It has the unique luxurious feel of a metal water bottle, and is healthy and safe. [Heat and Cold Retention] The stainless steel vacuum insulated mug tumbler has a vacuum double-layer insulation structure that can maintain the optimal temperature of your drinks. [Simple Design] This is a dual-use cup with a straw that can also be used at the mouth. The irregular polygonal rhombus cup shape increases capacity, can be held by hand, and has a non-slip design. The mug cup straw spout comes with two mug lids (one spare lid + sponge brush), which are dustproof, leak-proof, and have a special lid notch design that is difficult to lose during use. [Easy to Carry] The surface of the kettle adopts a matte texture and an ergonomic groove design, which is non-slip and wear-resistant. The lid adopts a recessed pull tab design that fits most car/motorcycle cup holders, making it ideal for carrying by hand or using in a car. [Versatile] The tumbler can be used at home, office, school, for sports, fitness, etc., and is suitable for parents, children, and friends. It is also perfect as a gift.