400ml insulated travel coffee mug made from double-walled stainless steel with a 304 food-grade stainless steel interior. Designed to help keep drinks hot or cold, with a leak-proof screw lid featuring a temperature display, flip-top opening, and straw hole. Includes a portable lifting rope and a non-slip rubber base, making it suitable for coffee, tea, and cold beverages on the go. Capacity: 400ml. Color: Green. Material: 304 stainless steel. Special features: Heat preservation, leak proof, BPA-free, odor-free, temperature display, lifting rope.