Come and see our amazing products. This 20oz tumbler is made from high quality 18/8 304 food grade stainless steel. Lead free and durable. Rust-proof, easy wash and unbreakable. It is with Double-Wall vacuum technology to keep drinks hot for over 6 hours and cold for around 24 hours. Extra sealed and the lid cover provide maximum splash-proof capability. Drink hole on the top for easy sipping. Customized logos are welcome. Pls confirm with us about the packing info, stock color and exact production time before placing your order