Product descriptionDouble wall stainless steel. Its Capacity is 450 ml. It can be use at Home/office/car & has Slide open feature. Plug pin car adaptor or USB adaptor. It was made of high quality food grade stainless steel and no joint less structure. This Product is Eco-friendly, reusable 100% recyclable. Non-leaching and toxin-free product. No leak & easy open twist top and keep fresh, light, durable, easy to carry,. Anti-corrosion special coating. Food-grade pp lid. And leak-proof protection silicon ring. Use it for travelling outside, drinkware, office etc. Mug material is stainless steel. Cap material is polypropylene (pp#5). Printing: silkscreen or heat transfer, engraving and embossed. Stainless Steel Layer consist double wall. Mouth part: functional large-mouth opening, convenient to pour into water. Thickness: 0. 4mm. Process: shaped by extrusion, seamless body and polished surface