Come and see our amazing products. Set your brand apart from others with this handy item. 30oz tumbler is with Double-Wall vacuum technology to keep drinks hot for over 6 hours and cold for around 24 hours. The tumbler is made from high-quality 18/8 304 food-grade stainless steel. Lead free and durable. Rust-proof, easy wash, and unbreakable. Extra sealed and the lid cover provides the maximum splash-proof capability. Drink a hole on the top for easy sipping. Pls confirm with us about the packing info, stock color and exact production time before placing your order.